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Finding the Fourth Proportional to 354,882.60, 531,449.10 and 235,909.80

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Solution

The fourth proportional to 354,882.60, 531,449.10 and 235,909.80 is: 353,283.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,882.60 : 531,449.10 = 235,909.80 : x
  2. Step 2: Convert to fraction form
    354,882.60/531,449.10 = 235,909.80/x
  3. Step 3: Cross multiply
    354,882.60x = 531,449.10 × 235,909.80
  4. Step 4: Simplify right side
    354,882.60x = 125,374,050,891.18
  5. Step 5: Solve for x
    x = 125,374,050,891.18/354,882.60
  6. Step 6: Final answer
    x = 353,283.17

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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.