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Finding the Fourth Proportional to 416,818.62, 625,280.91 and 132,407.67

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Solution

The fourth proportional to 416,818.62, 625,280.91 and 132,407.67 is: 198,628.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,818.62 : 625,280.91 = 132,407.67 : x
  2. Step 2: Convert to fraction form
    416,818.62/625,280.91 = 132,407.67/x
  3. Step 3: Cross multiply
    416,818.62x = 625,280.91 × 132,407.67
  4. Step 4: Simplify right side
    416,818.62x = 82,791,988,388.58
  5. Step 5: Solve for x
    x = 82,791,988,388.58/416,818.62
  6. Step 6: Final answer
    x = 198,628.33

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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.