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Finding the Fourth Proportional to 132,508.76, 182,863.53 and 72,079.56

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Solution

The fourth proportional to 132,508.76, 182,863.53 and 72,079.56 is: 99,470.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,508.76 : 182,863.53 = 72,079.56 : x
  2. Step 2: Convert to fraction form
    132,508.76/182,863.53 = 72,079.56/x
  3. Step 3: Cross multiply
    132,508.76x = 182,863.53 × 72,079.56
  4. Step 4: Simplify right side
    132,508.76x = 13,180,722,782.45
  5. Step 5: Solve for x
    x = 13,180,722,782.45/132,508.76
  6. Step 6: Final answer
    x = 99,470.58

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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.