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Finding the Fourth Proportional to 80,359.70, 110,743.45 and 58,856.02

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Solution

The fourth proportional to 80,359.70, 110,743.45 and 58,856.02 is: 81,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,359.70 : 110,743.45 = 58,856.02 : x
  2. Step 2: Convert to fraction form
    80,359.70/110,743.45 = 58,856.02/x
  3. Step 3: Cross multiply
    80,359.70x = 110,743.45 × 58,856.02
  4. Step 4: Simplify right side
    80,359.70x = 6,517,918,615.14
  5. Step 5: Solve for x
    x = 6,517,918,615.14/80,359.70
  6. Step 6: Final answer
    x = 81,109.30

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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.