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Finding the Fourth Proportional to 99,063.76, 148,593.90 and 39,897.92

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Solution

The fourth proportional to 99,063.76, 148,593.90 and 39,897.92 is: 59,846.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,063.76 : 148,593.90 = 39,897.92 : x
  2. Step 2: Convert to fraction form
    99,063.76/148,593.90 = 39,897.92/x
  3. Step 3: Cross multiply
    99,063.76x = 148,593.90 × 39,897.92
  4. Step 4: Simplify right side
    99,063.76x = 5,928,587,534.69
  5. Step 5: Solve for x
    x = 5,928,587,534.69/99,063.76
  6. Step 6: Final answer
    x = 59,846.18

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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.