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Finding the Fourth Proportional to 101,842.62, 140,559.71 and 59,401.15

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Solution

The fourth proportional to 101,842.62, 140,559.71 and 59,401.15 is: 81,983.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,842.62 : 140,559.71 = 59,401.15 : x
  2. Step 2: Convert to fraction form
    101,842.62/140,559.71 = 59,401.15/x
  3. Step 3: Cross multiply
    101,842.62x = 140,559.71 × 59,401.15
  4. Step 4: Simplify right side
    101,842.62x = 8,349,407,769.26
  5. Step 5: Solve for x
    x = 8,349,407,769.26/101,842.62
  6. Step 6: Final answer
    x = 81,983.44

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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.