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Finding the Fourth Proportional to 83,771.81, 125,627.28 and 45,849.11

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Solution

The fourth proportional to 83,771.81, 125,627.28 and 45,849.11 is: 68,757.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,771.81 : 125,627.28 = 45,849.11 : x
  2. Step 2: Convert to fraction form
    83,771.81/125,627.28 = 45,849.11/x
  3. Step 3: Cross multiply
    83,771.81x = 125,627.28 × 45,849.11
  4. Step 4: Simplify right side
    83,771.81x = 5,759,898,351.58
  5. Step 5: Solve for x
    x = 5,759,898,351.58/83,771.81
  6. Step 6: Final answer
    x = 68,757.00

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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.