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Finding the Fourth Proportional to 83,763.54, 115,569.06 and 49,754.97

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Solution

The fourth proportional to 83,763.54, 115,569.06 and 49,754.97 is: 68,647.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,763.54 : 115,569.06 = 49,754.97 : x
  2. Step 2: Convert to fraction form
    83,763.54/115,569.06 = 49,754.97/x
  3. Step 3: Cross multiply
    83,763.54x = 115,569.06 × 49,754.97
  4. Step 4: Simplify right side
    83,763.54x = 5,750,135,113.23
  5. Step 5: Solve for x
    x = 5,750,135,113.23/83,763.54
  6. Step 6: Final answer
    x = 68,647.23

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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.