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Finding the Fourth Proportional to 138,473.73, 207,710.60 and 33,292.70

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Solution

The fourth proportional to 138,473.73, 207,710.60 and 33,292.70 is: 49,939.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,473.73 : 207,710.60 = 33,292.70 : x
  2. Step 2: Convert to fraction form
    138,473.73/207,710.60 = 33,292.70/x
  3. Step 3: Cross multiply
    138,473.73x = 207,710.60 × 33,292.70
  4. Step 4: Simplify right side
    138,473.73x = 6,915,247,045.43
  5. Step 5: Solve for x
    x = 6,915,247,045.43/138,473.73
  6. Step 6: Final answer
    x = 49,939.05

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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.