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Finding the Fourth Proportional to 83,213.40, 124,747.20 and 49,898.10

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Solution

The fourth proportional to 83,213.40, 124,747.20 and 49,898.10 is: 74,803.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,213.40 : 124,747.20 = 49,898.10 : x
  2. Step 2: Convert to fraction form
    83,213.40/124,747.20 = 49,898.10/x
  3. Step 3: Cross multiply
    83,213.40x = 124,747.20 × 49,898.10
  4. Step 4: Simplify right side
    83,213.40x = 6,224,648,260.32
  5. Step 5: Solve for x
    x = 6,224,648,260.32/83,213.40
  6. Step 6: Final answer
    x = 74,803.44

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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.