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Finding the Fourth Proportional to 354,730.20, 532,248.90 and 167,645.40

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Solution

The fourth proportional to 354,730.20, 532,248.90 and 167,645.40 is: 251,540.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,730.20 : 532,248.90 = 167,645.40 : x
  2. Step 2: Convert to fraction form
    354,730.20/532,248.90 = 167,645.40/x
  3. Step 3: Cross multiply
    354,730.20x = 532,248.90 × 167,645.40
  4. Step 4: Simplify right side
    354,730.20x = 89,229,079,740.06
  5. Step 5: Solve for x
    x = 89,229,079,740.06/354,730.20
  6. Step 6: Final answer
    x = 251,540.69

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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.