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Finding the Fourth Proportional to 101,842.97, 140,544.81 and 56,523.87

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Solution

The fourth proportional to 101,842.97, 140,544.81 and 56,523.87 is: 78,003.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,842.97 : 140,544.81 = 56,523.87 : x
  2. Step 2: Convert to fraction form
    101,842.97/140,544.81 = 56,523.87/x
  3. Step 3: Cross multiply
    101,842.97x = 140,544.81 × 56,523.87
  4. Step 4: Simplify right side
    101,842.97x = 7,944,136,569.61
  5. Step 5: Solve for x
    x = 7,944,136,569.61/101,842.97
  6. Step 6: Final answer
    x = 78,003.78

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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.