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Finding the Fourth Proportional to 64,471.60, 96,613.92 and 45,788.24

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Solution

The fourth proportional to 64,471.60, 96,613.92 and 45,788.24 is: 68,615.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,471.60 : 96,613.92 = 45,788.24 : x
  2. Step 2: Convert to fraction form
    64,471.60/96,613.92 = 45,788.24/x
  3. Step 3: Cross multiply
    64,471.60x = 96,613.92 × 45,788.24
  4. Step 4: Simplify right side
    64,471.60x = 4,423,781,356.30
  5. Step 5: Solve for x
    x = 4,423,781,356.30/64,471.60
  6. Step 6: Final answer
    x = 68,615.97

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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.