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Finding the Fourth Proportional to 62,139.72, 93,212.02 and 27,079.68

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Solution

The fourth proportional to 62,139.72, 93,212.02 and 27,079.68 is: 40,620.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,139.72 : 93,212.02 = 27,079.68 : x
  2. Step 2: Convert to fraction form
    62,139.72/93,212.02 = 27,079.68/x
  3. Step 3: Cross multiply
    62,139.72x = 93,212.02 × 27,079.68
  4. Step 4: Simplify right side
    62,139.72x = 2,524,151,673.75
  5. Step 5: Solve for x
    x = 2,524,151,673.75/62,139.72
  6. Step 6: Final answer
    x = 40,620.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.