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Finding the Fourth Proportional to 101,914.73, 140,637.62 and 56,595.61

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Solution

The fourth proportional to 101,914.73, 140,637.62 and 56,595.61 is: 78,099.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,914.73 : 140,637.62 = 56,595.61 : x
  2. Step 2: Convert to fraction form
    101,914.73/140,637.62 = 56,595.61/x
  3. Step 3: Cross multiply
    101,914.73x = 140,637.62 × 56,595.61
  4. Step 4: Simplify right side
    101,914.73x = 7,959,471,891.78
  5. Step 5: Solve for x
    x = 7,959,471,891.78/101,914.73
  6. Step 6: Final answer
    x = 78,099.33

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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.