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Finding the Fourth Proportional to 124,876.32, 172,306.92 and 73,863.66

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Solution

The fourth proportional to 124,876.32, 172,306.92 and 73,863.66 is: 101,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,876.32 : 172,306.92 = 73,863.66 : x
  2. Step 2: Convert to fraction form
    124,876.32/172,306.92 = 73,863.66/x
  3. Step 3: Cross multiply
    124,876.32x = 172,306.92 × 73,863.66
  4. Step 4: Simplify right side
    124,876.32x = 12,727,219,754.53
  5. Step 5: Solve for x
    x = 12,727,219,754.53/124,876.32
  6. Step 6: Final answer
    x = 101,918.60

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1.5x scale

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.