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Finding the Fourth Proportional to 117,059.59, 161,542.65 and 63,344.61

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Solution

The fourth proportional to 117,059.59, 161,542.65 and 63,344.61 is: 87,415.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,059.59 : 161,542.65 = 63,344.61 : x
  2. Step 2: Convert to fraction form
    117,059.59/161,542.65 = 63,344.61/x
  3. Step 3: Cross multiply
    117,059.59x = 161,542.65 × 63,344.61
  4. Step 4: Simplify right side
    117,059.59x = 10,232,856,162.62
  5. Step 5: Solve for x
    x = 10,232,856,162.62/117,059.59
  6. Step 6: Final answer
    x = 87,415.79

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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.