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Finding the Fourth Proportional to 61,248,350.56, 91,885,978.20 and 18,114,191.08

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Solution

The fourth proportional to 61,248,350.56, 91,885,978.20 and 18,114,191.08 is: 27,175,265.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,248,350.56 : 91,885,978.20 = 18,114,191.08 : x
  2. Step 2: Convert to fraction form
    61,248,350.56/91,885,978.20 = 18,114,191.08/x
  3. Step 3: Cross multiply
    61,248,350.56x = 91,885,978.20 × 18,114,191.08
  4. Step 4: Simplify right side
    61,248,350.56x = 1,664,440,166,687,514.25
  5. Step 5: Solve for x
    x = 1,664,440,166,687,514.25/61,248,350.56
  6. Step 6: Final answer
    x = 27,175,265.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.