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Finding the Fourth Proportional to 330,909.60, 496,569.60 and 173,251.20

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Solution

The fourth proportional to 330,909.60, 496,569.60 and 173,251.20 is: 259,984.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,909.60 : 496,569.60 = 173,251.20 : x
  2. Step 2: Convert to fraction form
    330,909.60/496,569.60 = 173,251.20/x
  3. Step 3: Cross multiply
    330,909.60x = 496,569.60 × 173,251.20
  4. Step 4: Simplify right side
    330,909.60x = 86,031,279,083.52
  5. Step 5: Solve for x
    x = 86,031,279,083.52/330,909.60
  6. Step 6: Final answer
    x = 259,984.23

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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.