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Finding the Fourth Proportional to 138,029.17, 206,711.44 and 93,520.98

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Solution

The fourth proportional to 138,029.17, 206,711.44 and 93,520.98 is: 140,056.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,029.17 : 206,711.44 = 93,520.98 : x
  2. Step 2: Convert to fraction form
    138,029.17/206,711.44 = 93,520.98/x
  3. Step 3: Cross multiply
    138,029.17x = 206,711.44 × 93,520.98
  4. Step 4: Simplify right side
    138,029.17x = 19,331,856,446.01
  5. Step 5: Solve for x
    x = 19,331,856,446.01/138,029.17
  6. Step 6: Final answer
    x = 140,056.31

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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.