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Finding the Fourth Proportional to 79,084.56, 109,003.68 and 59,958

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Solution

The fourth proportional to 79,084.56, 109,003.68 and 59,958 is: 82,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,084.56 : 109,003.68 = 59,958 : x
  2. Step 2: Convert to fraction form
    79,084.56/109,003.68 = 59,958/x
  3. Step 3: Cross multiply
    79,084.56x = 109,003.68 × 59,958
  4. Step 4: Simplify right side
    79,084.56x = 6,535,642,645.44
  5. Step 5: Solve for x
    x = 6,535,642,645.44/79,084.56
  6. Step 6: Final answer
    x = 82,641.20

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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.