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Finding the Fourth Proportional to 110,487.80, 165,876.24 and 65,591.12

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Solution

The fourth proportional to 110,487.80, 165,876.24 and 65,591.12 is: 98,472.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,487.80 : 165,876.24 = 65,591.12 : x
  2. Step 2: Convert to fraction form
    110,487.80/165,876.24 = 65,591.12/x
  3. Step 3: Cross multiply
    110,487.80x = 165,876.24 × 65,591.12
  4. Step 4: Simplify right side
    110,487.80x = 10,880,008,362.99
  5. Step 5: Solve for x
    x = 10,880,008,362.99/110,487.80
  6. Step 6: Final answer
    x = 98,472.49

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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.