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Finding the Fourth Proportional to 440,193.26, 660,097.60 and 155,789.28

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Solution

The fourth proportional to 440,193.26, 660,097.60 and 155,789.28 is: 233,615.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,193.26 : 660,097.60 = 155,789.28 : x
  2. Step 2: Convert to fraction form
    440,193.26/660,097.60 = 155,789.28/x
  3. Step 3: Cross multiply
    440,193.26x = 660,097.60 × 155,789.28
  4. Step 4: Simplify right side
    440,193.26x = 102,836,129,833.73
  5. Step 5: Solve for x
    x = 102,836,129,833.73/440,193.26
  6. Step 6: Final answer
    x = 233,615.87

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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.