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Finding the Fourth Proportional to 83,394.94, 115,096.20 and 49,400.80

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Solution

The fourth proportional to 83,394.94, 115,096.20 and 49,400.80 is: 68,179.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,394.94 : 115,096.20 = 49,400.80 : x
  2. Step 2: Convert to fraction form
    83,394.94/115,096.20 = 49,400.80/x
  3. Step 3: Cross multiply
    83,394.94x = 115,096.20 × 49,400.80
  4. Step 4: Simplify right side
    83,394.94x = 5,685,844,356.96
  5. Step 5: Solve for x
    x = 5,685,844,356.96/83,394.94
  6. Step 6: Final answer
    x = 68,179.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.