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Finding the Fourth Proportional to 132,551.76, 182,872.44 and 78,839.04

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Solution

The fourth proportional to 132,551.76, 182,872.44 and 78,839.04 is: 108,768.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,551.76 : 182,872.44 = 78,839.04 : x
  2. Step 2: Convert to fraction form
    132,551.76/182,872.44 = 78,839.04/x
  3. Step 3: Cross multiply
    132,551.76x = 182,872.44 × 78,839.04
  4. Step 4: Simplify right side
    132,551.76x = 14,417,487,612.06
  5. Step 5: Solve for x
    x = 14,417,487,612.06/132,551.76
  6. Step 6: Final answer
    x = 108,768.74

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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.