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Finding the Fourth Proportional to 117,291.48, 161,862.60 and 63,576.71

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Solution

The fourth proportional to 117,291.48, 161,862.60 and 63,576.71 is: 87,736.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,291.48 : 161,862.60 = 63,576.71 : x
  2. Step 2: Convert to fraction form
    117,291.48/161,862.60 = 63,576.71/x
  3. Step 3: Cross multiply
    117,291.48x = 161,862.60 × 63,576.71
  4. Step 4: Simplify right side
    117,291.48x = 10,290,691,990.18
  5. Step 5: Solve for x
    x = 10,290,691,990.18/117,291.48
  6. Step 6: Final answer
    x = 87,736.05

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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.