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Finding the Fourth Proportional to 101,898.35, 140,636.46 and 59,456.78

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Solution

The fourth proportional to 101,898.35, 140,636.46 and 59,456.78 is: 82,060.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,898.35 : 140,636.46 = 59,456.78 : x
  2. Step 2: Convert to fraction form
    101,898.35/140,636.46 = 59,456.78/x
  3. Step 3: Cross multiply
    101,898.35x = 140,636.46 × 59,456.78
  4. Step 4: Simplify right side
    101,898.35x = 8,361,791,062.20
  5. Step 5: Solve for x
    x = 8,361,791,062.20/101,898.35
  6. Step 6: Final answer
    x = 82,060.12

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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.