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Finding the Fourth Proportional to 137,444.88, 206,207.28 and 57,520.56

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Solution

The fourth proportional to 137,444.88, 206,207.28 and 57,520.56 is: 86,297.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,444.88 : 206,207.28 = 57,520.56 : x
  2. Step 2: Convert to fraction form
    137,444.88/206,207.28 = 57,520.56/x
  3. Step 3: Cross multiply
    137,444.88x = 206,207.28 × 57,520.56
  4. Step 4: Simplify right side
    137,444.88x = 11,861,158,221.68
  5. Step 5: Solve for x
    x = 11,861,158,221.68/137,444.88
  6. Step 6: Final answer
    x = 86,297.56

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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.