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Finding the Fourth Proportional to 482,825.80, 724,335.90 and 167,217.40

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Solution

The fourth proportional to 482,825.80, 724,335.90 and 167,217.40 is: 250,859.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,825.80 : 724,335.90 = 167,217.40 : x
  2. Step 2: Convert to fraction form
    482,825.80/724,335.90 = 167,217.40/x
  3. Step 3: Cross multiply
    482,825.80x = 724,335.90 × 167,217.40
  4. Step 4: Simplify right side
    482,825.80x = 121,121,565,924.66
  5. Step 5: Solve for x
    x = 121,121,565,924.66/482,825.80
  6. Step 6: Final answer
    x = 250,859.76

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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.