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Finding the Fourth Proportional to 71,292.66, 98,359.77 and 41,077.20

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Solution

The fourth proportional to 71,292.66, 98,359.77 and 41,077.20 is: 56,672.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,292.66 : 98,359.77 = 41,077.20 : x
  2. Step 2: Convert to fraction form
    71,292.66/98,359.77 = 41,077.20/x
  3. Step 3: Cross multiply
    71,292.66x = 98,359.77 × 41,077.20
  4. Step 4: Simplify right side
    71,292.66x = 4,040,343,944.24
  5. Step 5: Solve for x
    x = 4,040,343,944.24/71,292.66
  6. Step 6: Final answer
    x = 56,672.65

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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.