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RIO DE JANEIRO, June 29 (Reuters) - Brazilian college operator Ser Educacional SA plans to present an improved proposal to combine with larger rival Estacio Participacoes SA on Wednesday, according to a source with knowledge of the talks.
Ser Educacional's new offer would increase the dividend payout to Estacio shareholders, the source said. (Reporting by Juliana Schincariol; Editing by Jeffrey Benkoe)