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Finding the Fourth Proportional to 82,751.98, 124,205.70 and 43,337.38

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Solution

The fourth proportional to 82,751.98, 124,205.70 and 43,337.38 is: 65,046.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,751.98 : 124,205.70 = 43,337.38 : x
  2. Step 2: Convert to fraction form
    82,751.98/124,205.70 = 43,337.38/x
  3. Step 3: Cross multiply
    82,751.98x = 124,205.70 × 43,337.38
  4. Step 4: Simplify right side
    82,751.98x = 5,382,749,619.07
  5. Step 5: Solve for x
    x = 5,382,749,619.07/82,751.98
  6. Step 6: Final answer
    x = 65,046.78

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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.