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Finding the Fourth Proportional to 132,659.92, 183,068.86 and 72,230.56

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Solution

The fourth proportional to 132,659.92, 183,068.86 and 72,230.56 is: 99,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,659.92 : 183,068.86 = 72,230.56 : x
  2. Step 2: Convert to fraction form
    132,659.92/183,068.86 = 72,230.56/x
  3. Step 3: Cross multiply
    132,659.92x = 183,068.86 × 72,230.56
  4. Step 4: Simplify right side
    132,659.92x = 13,223,165,884.53
  5. Step 5: Solve for x
    x = 13,223,165,884.53/132,659.92
  6. Step 6: Final answer
    x = 99,677.18

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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.