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Finding the Fourth Proportional to 57,484.32, 86,092.70 and 55,489.11

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Solution

The fourth proportional to 57,484.32, 86,092.70 and 55,489.11 is: 83,104.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,484.32 : 86,092.70 = 55,489.11 : x
  2. Step 2: Convert to fraction form
    57,484.32/86,092.70 = 55,489.11/x
  3. Step 3: Cross multiply
    57,484.32x = 86,092.70 × 55,489.11
  4. Step 4: Simplify right side
    57,484.32x = 4,777,207,023.05
  5. Step 5: Solve for x
    x = 4,777,207,023.05/57,484.32
  6. Step 6: Final answer
    x = 83,104.52

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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.