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Finding the Fourth Proportional to 118,147.53, 176,682.59 and 88,182.90

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Solution

The fourth proportional to 118,147.53, 176,682.59 and 88,182.90 is: 131,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,147.53 : 176,682.59 = 88,182.90 : x
  2. Step 2: Convert to fraction form
    118,147.53/176,682.59 = 88,182.90/x
  3. Step 3: Cross multiply
    118,147.53x = 176,682.59 × 88,182.90
  4. Step 4: Simplify right side
    118,147.53x = 15,580,382,724.80
  5. Step 5: Solve for x
    x = 15,580,382,724.80/118,147.53
  6. Step 6: Final answer
    x = 131,872.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.