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Finding the Fourth Proportional to 118,006.76, 162,843.70 and 64,291.52

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Solution

The fourth proportional to 118,006.76, 162,843.70 and 64,291.52 is: 88,719.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,006.76 : 162,843.70 = 64,291.52 : x
  2. Step 2: Convert to fraction form
    118,006.76/162,843.70 = 64,291.52/x
  3. Step 3: Cross multiply
    118,006.76x = 162,843.70 × 64,291.52
  4. Step 4: Simplify right side
    118,006.76x = 10,469,468,995.42
  5. Step 5: Solve for x
    x = 10,469,468,995.42/118,006.76
  6. Step 6: Final answer
    x = 88,719.23

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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.