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Finding the Fourth Proportional to 117,356.75, 161,952.39 and 63,641.75

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Solution

The fourth proportional to 117,356.75, 161,952.39 and 63,641.75 is: 87,825.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,356.75 : 161,952.39 = 63,641.75 : x
  2. Step 2: Convert to fraction form
    117,356.75/161,952.39 = 63,641.75/x
  3. Step 3: Cross multiply
    117,356.75x = 161,952.39 × 63,641.75
  4. Step 4: Simplify right side
    117,356.75x = 10,306,933,516.28
  5. Step 5: Solve for x
    x = 10,306,933,516.28/117,356.75
  6. Step 6: Final answer
    x = 87,825.66

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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.