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Finding the Fourth Proportional to 416,913.75, 625,364.01 and 132,600.20

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Solution

The fourth proportional to 416,913.75, 625,364.01 and 132,600.20 is: 198,898.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,913.75 : 625,364.01 = 132,600.20 : x
  2. Step 2: Convert to fraction form
    416,913.75/625,364.01 = 132,600.20/x
  3. Step 3: Cross multiply
    416,913.75x = 625,364.01 × 132,600.20
  4. Step 4: Simplify right side
    416,913.75x = 82,923,389,671.98
  5. Step 5: Solve for x
    x = 82,923,389,671.98/416,913.75
  6. Step 6: Final answer
    x = 198,898.19

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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.