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Finding the Fourth Proportional to 416,981.26, 625,471.89 and 101,435.43

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Solution

The fourth proportional to 416,981.26, 625,471.89 and 101,435.43 is: 152,153.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,981.26 : 625,471.89 = 101,435.43 : x
  2. Step 2: Convert to fraction form
    416,981.26/625,471.89 = 101,435.43/x
  3. Step 3: Cross multiply
    416,981.26x = 625,471.89 × 101,435.43
  4. Step 4: Simplify right side
    416,981.26x = 63,445,010,115.06
  5. Step 5: Solve for x
    x = 63,445,010,115.06/416,981.26
  6. Step 6: Final answer
    x = 152,153.15

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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.