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Finding the Fourth Proportional to 151,700.73, 209,360.40 and 83,732.41

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Solution

The fourth proportional to 151,700.73, 209,360.40 and 83,732.41 is: 115,558.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,700.73 : 209,360.40 = 83,732.41 : x
  2. Step 2: Convert to fraction form
    151,700.73/209,360.40 = 83,732.41/x
  3. Step 3: Cross multiply
    151,700.73x = 209,360.40 × 83,732.41
  4. Step 4: Simplify right side
    151,700.73x = 17,530,250,850.56
  5. Step 5: Solve for x
    x = 17,530,250,850.56/151,700.73
  6. Step 6: Final answer
    x = 115,558.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.