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Finding the Fourth Proportional to 132,159.88, 182,532.02 and 87,039.56

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Solution

The fourth proportional to 132,159.88, 182,532.02 and 87,039.56 is: 120,214.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,159.88 : 182,532.02 = 87,039.56 : x
  2. Step 2: Convert to fraction form
    132,159.88/182,532.02 = 87,039.56/x
  3. Step 3: Cross multiply
    132,159.88x = 182,532.02 × 87,039.56
  4. Step 4: Simplify right side
    132,159.88x = 15,887,506,706.71
  5. Step 5: Solve for x
    x = 15,887,506,706.71/132,159.88
  6. Step 6: Final answer
    x = 120,214.29

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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.