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Finding the Fourth Proportional to 137,922.90, 206,932.95 and 133,062.90

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Solution

The fourth proportional to 137,922.90, 206,932.95 and 133,062.90 is: 199,641.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,922.90 : 206,932.95 = 133,062.90 : x
  2. Step 2: Convert to fraction form
    137,922.90/206,932.95 = 133,062.90/x
  3. Step 3: Cross multiply
    137,922.90x = 206,932.95 × 133,062.90
  4. Step 4: Simplify right side
    137,922.90x = 27,535,098,432.56
  5. Step 5: Solve for x
    x = 27,535,098,432.56/137,922.90
  6. Step 6: Final answer
    x = 199,641.24

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1.5x scale

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.