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Finding the Fourth Proportional to 85,030.38, 127,602.68 and 58,687.97

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Solution

The fourth proportional to 85,030.38, 127,602.68 and 58,687.97 is: 88,071.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,030.38 : 127,602.68 = 58,687.97 : x
  2. Step 2: Convert to fraction form
    85,030.38/127,602.68 = 58,687.97/x
  3. Step 3: Cross multiply
    85,030.38x = 127,602.68 × 58,687.97
  4. Step 4: Simplify right side
    85,030.38x = 7,488,741,324.31
  5. Step 5: Solve for x
    x = 7,488,741,324.31/85,030.38
  6. Step 6: Final answer
    x = 88,071.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.