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Finding the Fourth Proportional to 416,863.68, 625,412.16 and 167,720.64

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Solution

The fourth proportional to 416,863.68, 625,412.16 and 167,720.64 is: 251,627.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,863.68 : 625,412.16 = 167,720.64 : x
  2. Step 2: Convert to fraction form
    416,863.68/625,412.16 = 167,720.64/x
  3. Step 3: Cross multiply
    416,863.68x = 625,412.16 × 167,720.64
  4. Step 4: Simplify right side
    416,863.68x = 104,894,527,738.98
  5. Step 5: Solve for x
    x = 104,894,527,738.98/416,863.68
  6. Step 6: Final answer
    x = 251,627.89

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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.