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Finding the Fourth Proportional to 117,763.53, 162,517.94 and 67,472.25

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Solution

The fourth proportional to 117,763.53, 162,517.94 and 67,472.25 is: 93,114.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,763.53 : 162,517.94 = 67,472.25 : x
  2. Step 2: Convert to fraction form
    117,763.53/162,517.94 = 67,472.25/x
  3. Step 3: Cross multiply
    117,763.53x = 162,517.94 × 67,472.25
  4. Step 4: Simplify right side
    117,763.53x = 10,965,451,077.17
  5. Step 5: Solve for x
    x = 10,965,451,077.17/117,763.53
  6. Step 6: Final answer
    x = 93,114.15

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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.