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Finding the Fourth Proportional to 117,521.76, 162,179.10 and 63,805.68

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Solution

The fourth proportional to 117,521.76, 162,179.10 and 63,805.68 is: 88,051.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,521.76 : 162,179.10 = 63,805.68 : x
  2. Step 2: Convert to fraction form
    117,521.76/162,179.10 = 63,805.68/x
  3. Step 3: Cross multiply
    117,521.76x = 162,179.10 × 63,805.68
  4. Step 4: Simplify right side
    117,521.76x = 10,347,947,757.29
  5. Step 5: Solve for x
    x = 10,347,947,757.29/117,521.76
  6. Step 6: Final answer
    x = 88,051.33

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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.