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Finding the Fourth Proportional to 117,597.36, 162,285.48 and 63,882.78

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Solution

The fourth proportional to 117,597.36, 162,285.48 and 63,882.78 is: 88,158.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,597.36 : 162,285.48 = 63,882.78 : x
  2. Step 2: Convert to fraction form
    117,597.36/162,285.48 = 63,882.78/x
  3. Step 3: Cross multiply
    117,597.36x = 162,285.48 × 63,882.78
  4. Step 4: Simplify right side
    117,597.36x = 10,367,247,616.03
  5. Step 5: Solve for x
    x = 10,367,247,616.03/117,597.36
  6. Step 6: Final answer
    x = 88,158.85

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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.