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Finding the Fourth Proportional to 109,841.76, 151,572.18 and 63,909.88

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Solution

The fourth proportional to 109,841.76, 151,572.18 and 63,909.88 is: 88,190.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,841.76 : 151,572.18 = 63,909.88 : x
  2. Step 2: Convert to fraction form
    109,841.76/151,572.18 = 63,909.88/x
  3. Step 3: Cross multiply
    109,841.76x = 151,572.18 × 63,909.88
  4. Step 4: Simplify right side
    109,841.76x = 9,686,959,835.14
  5. Step 5: Solve for x
    x = 9,686,959,835.14/109,841.76
  6. Step 6: Final answer
    x = 88,190.14

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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.