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Finding the Fourth Proportional to 416,770.56, 625,175.04 and 121,282.56

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Solution

The fourth proportional to 416,770.56, 625,175.04 and 121,282.56 is: 181,929.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,770.56 : 625,175.04 = 121,282.56 : x
  2. Step 2: Convert to fraction form
    416,770.56/625,175.04 = 121,282.56/x
  3. Step 3: Cross multiply
    416,770.56x = 625,175.04 × 121,282.56
  4. Step 4: Simplify right side
    416,770.56x = 75,822,829,299.30
  5. Step 5: Solve for x
    x = 75,822,829,299.30/416,770.56
  6. Step 6: Final answer
    x = 181,929.43

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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.