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Finding the Fourth Proportional to 83,754.03, 115,528.68 and 55,076.97

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Solution

The fourth proportional to 83,754.03, 115,528.68 and 55,076.97 is: 75,972.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,754.03 : 115,528.68 = 55,076.97 : x
  2. Step 2: Convert to fraction form
    83,754.03/115,528.68 = 55,076.97/x
  3. Step 3: Cross multiply
    83,754.03x = 115,528.68 × 55,076.97
  4. Step 4: Simplify right side
    83,754.03x = 6,362,969,642.50
  5. Step 5: Solve for x
    x = 6,362,969,642.50/83,754.03
  6. Step 6: Final answer
    x = 75,972.10

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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.