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Finding the Fourth Proportional to 83,506.01, 115,245.54 and 45,787.55

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Solution

The fourth proportional to 83,506.01, 115,245.54 and 45,787.55 is: 63,190.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,506.01 : 115,245.54 = 45,787.55 : x
  2. Step 2: Convert to fraction form
    83,506.01/115,245.54 = 45,787.55/x
  3. Step 3: Cross multiply
    83,506.01x = 115,245.54 × 45,787.55
  4. Step 4: Simplify right side
    83,506.01x = 5,276,810,348.80
  5. Step 5: Solve for x
    x = 5,276,810,348.80/83,506.01
  6. Step 6: Final answer
    x = 63,190.79

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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.