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Finding the Fourth Proportional to 324,808.60, 487,213.15 and 88,151.28

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Solution

The fourth proportional to 324,808.60, 487,213.15 and 88,151.28 is: 132,226.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,808.60 : 487,213.15 = 88,151.28 : x
  2. Step 2: Convert to fraction form
    324,808.60/487,213.15 = 88,151.28/x
  3. Step 3: Cross multiply
    324,808.60x = 487,213.15 × 88,151.28
  4. Step 4: Simplify right side
    324,808.60x = 42,948,462,805.33
  5. Step 5: Solve for x
    x = 42,948,462,805.33/324,808.60
  6. Step 6: Final answer
    x = 132,226.99

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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.