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Finding the Fourth Proportional to 104,661.56, 144,436.76 and 59,958.20

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Solution

The fourth proportional to 104,661.56, 144,436.76 and 59,958.20 is: 82,744.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,661.56 : 144,436.76 = 59,958.20 : x
  2. Step 2: Convert to fraction form
    104,661.56/144,436.76 = 59,958.20/x
  3. Step 3: Cross multiply
    104,661.56x = 144,436.76 × 59,958.20
  4. Step 4: Simplify right side
    104,661.56x = 8,660,167,121.46
  5. Step 5: Solve for x
    x = 8,660,167,121.46/104,661.56
  6. Step 6: Final answer
    x = 82,744.49

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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.