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Finding the Fourth Proportional to 238,363.20, 357,543.72 and 80,700.48

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Solution

The fourth proportional to 238,363.20, 357,543.72 and 80,700.48 is: 121,050.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,363.20 : 357,543.72 = 80,700.48 : x
  2. Step 2: Convert to fraction form
    238,363.20/357,543.72 = 80,700.48/x
  3. Step 3: Cross multiply
    238,363.20x = 357,543.72 × 80,700.48
  4. Step 4: Simplify right side
    238,363.20x = 28,853,949,824.99
  5. Step 5: Solve for x
    x = 28,853,949,824.99/238,363.20
  6. Step 6: Final answer
    x = 121,050.35

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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.