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Finding the Fourth Proportional to 83,927.70, 125,891.55 and 83,052.90

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Solution

The fourth proportional to 83,927.70, 125,891.55 and 83,052.90 is: 124,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,927.70 : 125,891.55 = 83,052.90 : x
  2. Step 2: Convert to fraction form
    83,927.70/125,891.55 = 83,052.90/x
  3. Step 3: Cross multiply
    83,927.70x = 125,891.55 × 83,052.90
  4. Step 4: Simplify right side
    83,927.70x = 10,455,658,313.00
  5. Step 5: Solve for x
    x = 10,455,658,313.00/83,927.70
  6. Step 6: Final answer
    x = 124,579.35

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1.5x scale

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.