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Finding the Fourth Proportional to 324,507.38, 486,807.16 and 99,886.52

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Solution

The fourth proportional to 324,507.38, 486,807.16 and 99,886.52 is: 149,843.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,507.38 : 486,807.16 = 99,886.52 : x
  2. Step 2: Convert to fraction form
    324,507.38/486,807.16 = 99,886.52/x
  3. Step 3: Cross multiply
    324,507.38x = 486,807.16 × 99,886.52
  4. Step 4: Simplify right side
    324,507.38x = 48,625,473,123.48
  5. Step 5: Solve for x
    x = 48,625,473,123.48/324,507.38
  6. Step 6: Final answer
    x = 149,843.97

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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.