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Finding the Fourth Proportional to 117,545.60, 176,419.20 and 47,475.20

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Solution

The fourth proportional to 117,545.60, 176,419.20 and 47,475.20 is: 71,253.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,545.60 : 176,419.20 = 47,475.20 : x
  2. Step 2: Convert to fraction form
    117,545.60/176,419.20 = 47,475.20/x
  3. Step 3: Cross multiply
    117,545.60x = 176,419.20 × 47,475.20
  4. Step 4: Simplify right side
    117,545.60x = 8,375,536,803.84
  5. Step 5: Solve for x
    x = 8,375,536,803.84/117,545.60
  6. Step 6: Final answer
    x = 71,253.51

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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.