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Finding the Fourth Proportional to 86,082.48, 118,761.48 and 63,475.47

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Solution

The fourth proportional to 86,082.48, 118,761.48 and 63,475.47 is: 87,572.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,082.48 : 118,761.48 = 63,475.47 : x
  2. Step 2: Convert to fraction form
    86,082.48/118,761.48 = 63,475.47/x
  3. Step 3: Cross multiply
    86,082.48x = 118,761.48 × 63,475.47
  4. Step 4: Simplify right side
    86,082.48x = 7,538,440,760.90
  5. Step 5: Solve for x
    x = 7,538,440,760.90/86,082.48
  6. Step 6: Final answer
    x = 87,572.30

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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.