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Finding the Fourth Proportional to 416,664.08, 625,073.88 and 136,378.16

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Solution

The fourth proportional to 416,664.08, 625,073.88 and 136,378.16 is: 204,592.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,664.08 : 625,073.88 = 136,378.16 : x
  2. Step 2: Convert to fraction form
    416,664.08/625,073.88 = 136,378.16/x
  3. Step 3: Cross multiply
    416,664.08x = 625,073.88 × 136,378.16
  4. Step 4: Simplify right side
    416,664.08x = 85,246,425,618.46
  5. Step 5: Solve for x
    x = 85,246,425,618.46/416,664.08
  6. Step 6: Final answer
    x = 204,592.69

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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.