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Finding the Fourth Proportional to 247,478.48, 371,217.72 and 60,489.68

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Solution

The fourth proportional to 247,478.48, 371,217.72 and 60,489.68 is: 90,734.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,478.48 : 371,217.72 = 60,489.68 : x
  2. Step 2: Convert to fraction form
    247,478.48/371,217.72 = 60,489.68/x
  3. Step 3: Cross multiply
    247,478.48x = 371,217.72 × 60,489.68
  4. Step 4: Simplify right side
    247,478.48x = 22,454,841,093.13
  5. Step 5: Solve for x
    x = 22,454,841,093.13/247,478.48
  6. Step 6: Final answer
    x = 90,734.52

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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.