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Finding the Fourth Proportional to 61,849.72, 85,354.68 and 36,355.68

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Solution

The fourth proportional to 61,849.72, 85,354.68 and 36,355.68 is: 50,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,849.72 : 85,354.68 = 36,355.68 : x
  2. Step 2: Convert to fraction form
    61,849.72/85,354.68 = 36,355.68/x
  3. Step 3: Cross multiply
    61,849.72x = 85,354.68 × 36,355.68
  4. Step 4: Simplify right side
    61,849.72x = 3,103,127,432.58
  5. Step 5: Solve for x
    x = 3,103,127,432.58/61,849.72
  6. Step 6: Final answer
    x = 50,172.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.