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Finding the Fourth Proportional to 83,768.55, 125,675.10 and 36,363.30

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Solution

The fourth proportional to 83,768.55, 125,675.10 and 36,363.30 is: 54,554.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,768.55 : 125,675.10 = 36,363.30 : x
  2. Step 2: Convert to fraction form
    83,768.55/125,675.10 = 36,363.30/x
  3. Step 3: Cross multiply
    83,768.55x = 125,675.10 × 36,363.30
  4. Step 4: Simplify right side
    83,768.55x = 4,569,961,363.83
  5. Step 5: Solve for x
    x = 4,569,961,363.83/83,768.55
  6. Step 6: Final answer
    x = 54,554.62

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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.