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Finding the Fourth Proportional to 83,299.70, 124,913.10 and 33,363.20

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Solution

The fourth proportional to 83,299.70, 124,913.10 and 33,363.20 is: 50,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,299.70 : 124,913.10 = 33,363.20 : x
  2. Step 2: Convert to fraction form
    83,299.70/124,913.10 = 33,363.20/x
  3. Step 3: Cross multiply
    83,299.70x = 124,913.10 × 33,363.20
  4. Step 4: Simplify right side
    83,299.70x = 4,167,500,737.92
  5. Step 5: Solve for x
    x = 4,167,500,737.92/83,299.70
  6. Step 6: Final answer
    x = 50,030.20

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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.