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Finding the Fourth Proportional to 117,489.80, 162,131.54 and 63,773.66

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Solution

The fourth proportional to 117,489.80, 162,131.54 and 63,773.66 is: 88,005.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,489.80 : 162,131.54 = 63,773.66 : x
  2. Step 2: Convert to fraction form
    117,489.80/162,131.54 = 63,773.66/x
  3. Step 3: Cross multiply
    117,489.80x = 162,131.54 × 63,773.66
  4. Step 4: Simplify right side
    117,489.80x = 10,339,721,707.24
  5. Step 5: Solve for x
    x = 10,339,721,707.24/117,489.80
  6. Step 6: Final answer
    x = 88,005.27

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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.