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Finding the Fourth Proportional to 402,882.33, 604,330.47 and 136,649.73

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Solution

The fourth proportional to 402,882.33, 604,330.47 and 136,649.73 is: 204,976.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,882.33 : 604,330.47 = 136,649.73 : x
  2. Step 2: Convert to fraction form
    402,882.33/604,330.47 = 136,649.73/x
  3. Step 3: Cross multiply
    402,882.33x = 604,330.47 × 136,649.73
  4. Step 4: Simplify right side
    402,882.33x = 82,581,595,556.27
  5. Step 5: Solve for x
    x = 82,581,595,556.27/402,882.33
  6. Step 6: Final answer
    x = 204,976.96

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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.