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Finding the Fourth Proportional to 104,489.60, 156,734.40 and 37,931.90

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Solution

The fourth proportional to 104,489.60, 156,734.40 and 37,931.90 is: 56,897.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,489.60 : 156,734.40 = 37,931.90 : x
  2. Step 2: Convert to fraction form
    104,489.60/156,734.40 = 37,931.90/x
  3. Step 3: Cross multiply
    104,489.60x = 156,734.40 × 37,931.90
  4. Step 4: Simplify right side
    104,489.60x = 5,945,233,587.36
  5. Step 5: Solve for x
    x = 5,945,233,587.36/104,489.60
  6. Step 6: Final answer
    x = 56,897.85

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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.