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Finding the Fourth Proportional to 165,591.16, 228,520.14 and 93,981.88

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Solution

The fourth proportional to 165,591.16, 228,520.14 and 93,981.88 is: 129,697.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,591.16 : 228,520.14 = 93,981.88 : x
  2. Step 2: Convert to fraction form
    165,591.16/228,520.14 = 93,981.88/x
  3. Step 3: Cross multiply
    165,591.16x = 228,520.14 × 93,981.88
  4. Step 4: Simplify right side
    165,591.16x = 21,476,752,375.06
  5. Step 5: Solve for x
    x = 21,476,752,375.06/165,591.16
  6. Step 6: Final answer
    x = 129,697.46

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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.