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Finding the Fourth Proportional to 62,489.86, 86,146.26 and 44,553.76

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Solution

The fourth proportional to 62,489.86, 86,146.26 and 44,553.76 is: 61,420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,489.86 : 86,146.26 = 44,553.76 : x
  2. Step 2: Convert to fraction form
    62,489.86/86,146.26 = 44,553.76/x
  3. Step 3: Cross multiply
    62,489.86x = 86,146.26 × 44,553.76
  4. Step 4: Simplify right side
    62,489.86x = 3,838,139,792.94
  5. Step 5: Solve for x
    x = 3,838,139,792.94/62,489.86
  6. Step 6: Final answer
    x = 61,420.20

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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.