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Finding the Fourth Proportional to 117,052.31, 161,531.66 and 63,338.27

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Solution

The fourth proportional to 117,052.31, 161,531.66 and 63,338.27 is: 87,406.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,052.31 : 161,531.66 = 63,338.27 : x
  2. Step 2: Convert to fraction form
    117,052.31/161,531.66 = 63,338.27/x
  3. Step 3: Cross multiply
    117,052.31x = 161,531.66 × 63,338.27
  4. Step 4: Simplify right side
    117,052.31x = 10,231,135,894.63
  5. Step 5: Solve for x
    x = 10,231,135,894.63/117,052.31
  6. Step 6: Final answer
    x = 87,406.53

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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.