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Finding the Fourth Proportional to 117,765.97, 162,515.43 and 64,049.83

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Solution

The fourth proportional to 117,765.97, 162,515.43 and 64,049.83 is: 88,387.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,765.97 : 162,515.43 = 64,049.83 : x
  2. Step 2: Convert to fraction form
    117,765.97/162,515.43 = 64,049.83/x
  3. Step 3: Cross multiply
    117,765.97x = 162,515.43 × 64,049.83
  4. Step 4: Simplify right side
    117,765.97x = 10,409,085,663.88
  5. Step 5: Solve for x
    x = 10,409,085,663.88/117,765.97
  6. Step 6: Final answer
    x = 88,387.89

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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.