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Finding the Fourth Proportional to 117,065.52, 161,550.42 and 63,350.54

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Solution

The fourth proportional to 117,065.52, 161,550.42 and 63,350.54 is: 87,423.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,065.52 : 161,550.42 = 63,350.54 : x
  2. Step 2: Convert to fraction form
    117,065.52/161,550.42 = 63,350.54/x
  3. Step 3: Cross multiply
    117,065.52x = 161,550.42 × 63,350.54
  4. Step 4: Simplify right side
    117,065.52x = 10,234,305,536.47
  5. Step 5: Solve for x
    x = 10,234,305,536.47/117,065.52
  6. Step 6: Final answer
    x = 87,423.74

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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.