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Finding the Fourth Proportional to 73,309.76, 101,137.20 and 49,443.92

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Solution

The fourth proportional to 73,309.76, 101,137.20 and 49,443.92 is: 68,212.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,309.76 : 101,137.20 = 49,443.92 : x
  2. Step 2: Convert to fraction form
    73,309.76/101,137.20 = 49,443.92/x
  3. Step 3: Cross multiply
    73,309.76x = 101,137.20 × 49,443.92
  4. Step 4: Simplify right side
    73,309.76x = 5,000,619,625.82
  5. Step 5: Solve for x
    x = 5,000,619,625.82/73,309.76
  6. Step 6: Final answer
    x = 68,212.19

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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.