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Finding the Fourth Proportional to 332,353.60, 498,530.40 and 172,921.30

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Solution

The fourth proportional to 332,353.60, 498,530.40 and 172,921.30 is: 259,381.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,353.60 : 498,530.40 = 172,921.30 : x
  2. Step 2: Convert to fraction form
    332,353.60/498,530.40 = 172,921.30/x
  3. Step 3: Cross multiply
    332,353.60x = 498,530.40 × 172,921.30
  4. Step 4: Simplify right side
    332,353.60x = 86,206,524,857.52
  5. Step 5: Solve for x
    x = 86,206,524,857.52/332,353.60
  6. Step 6: Final answer
    x = 259,381.95

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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.