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Finding the Fourth Proportional to 416,981.32, 625,472 and 167,605

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Solution

The fourth proportional to 416,981.32, 625,472 and 167,605 is: 251,407.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,981.32 : 625,472 = 167,605 : x
  2. Step 2: Convert to fraction form
    416,981.32/625,472 = 167,605/x
  3. Step 3: Cross multiply
    416,981.32x = 625,472 × 167,605
  4. Step 4: Simplify right side
    416,981.32x = 104,832,234,560
  5. Step 5: Solve for x
    x = 104,832,234,560/416,981.32
  6. Step 6: Final answer
    x = 251,407.51

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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.