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Finding the Fourth Proportional to 83,579.69, 125,368.13 and 33,658.54

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Solution

The fourth proportional to 83,579.69, 125,368.13 and 33,658.54 is: 50,487.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,579.69 : 125,368.13 = 33,658.54 : x
  2. Step 2: Convert to fraction form
    83,579.69/125,368.13 = 33,658.54/x
  3. Step 3: Cross multiply
    83,579.69x = 125,368.13 × 33,658.54
  4. Step 4: Simplify right side
    83,579.69x = 4,219,707,989.06
  5. Step 5: Solve for x
    x = 4,219,707,989.06/83,579.69
  6. Step 6: Final answer
    x = 50,487.24

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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.