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Finding the Fourth Proportional to 117,159.67, 161,680.46 and 63,444.75

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Solution

The fourth proportional to 117,159.67, 161,680.46 and 63,444.75 is: 87,553.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,159.67 : 161,680.46 = 63,444.75 : x
  2. Step 2: Convert to fraction form
    117,159.67/161,680.46 = 63,444.75/x
  3. Step 3: Cross multiply
    117,159.67x = 161,680.46 × 63,444.75
  4. Step 4: Simplify right side
    117,159.67x = 10,257,776,364.59
  5. Step 5: Solve for x
    x = 10,257,776,364.59/117,159.67
  6. Step 6: Final answer
    x = 87,553.82

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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.