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Finding the Fourth Proportional to 435,658.69, 653,333.39 and 127,824.76

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Solution

The fourth proportional to 435,658.69, 653,333.39 and 127,824.76 is: 191,691.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,658.69 : 653,333.39 = 127,824.76 : x
  2. Step 2: Convert to fraction form
    435,658.69/653,333.39 = 127,824.76/x
  3. Step 3: Cross multiply
    435,658.69x = 653,333.39 × 127,824.76
  4. Step 4: Simplify right side
    435,658.69x = 83,512,181,504.28
  5. Step 5: Solve for x
    x = 83,512,181,504.28/435,658.69
  6. Step 6: Final answer
    x = 191,691.76

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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.