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Finding the Fourth Proportional to 117,812.97, 176,590.89 and 57,882.69

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Solution

The fourth proportional to 117,812.97, 176,590.89 and 57,882.69 is: 86,760.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,812.97 : 176,590.89 = 57,882.69 : x
  2. Step 2: Convert to fraction form
    117,812.97/176,590.89 = 57,882.69/x
  3. Step 3: Cross multiply
    117,812.97x = 176,590.89 × 57,882.69
  4. Step 4: Simplify right side
    117,812.97x = 10,221,555,742.69
  5. Step 5: Solve for x
    x = 10,221,555,742.69/117,812.97
  6. Step 6: Final answer
    x = 86,760.87

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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.