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Finding the Fourth Proportional to 61,654.80, 92,428.20 and 41,869.20

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Solution

The fourth proportional to 61,654.80, 92,428.20 and 41,869.20 is: 62,767.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,654.80 : 92,428.20 = 41,869.20 : x
  2. Step 2: Convert to fraction form
    61,654.80/92,428.20 = 41,869.20/x
  3. Step 3: Cross multiply
    61,654.80x = 92,428.20 × 41,869.20
  4. Step 4: Simplify right side
    61,654.80x = 3,869,894,791.44
  5. Step 5: Solve for x
    x = 3,869,894,791.44/61,654.80
  6. Step 6: Final answer
    x = 62,767.13

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Why These Related Problems?

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