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Finding the Fourth Proportional to 83,245.50, 114,878.79 and 45,519.75

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Solution

The fourth proportional to 83,245.50, 114,878.79 and 45,519.75 is: 62,817.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,245.50 : 114,878.79 = 45,519.75 : x
  2. Step 2: Convert to fraction form
    83,245.50/114,878.79 = 45,519.75/x
  3. Step 3: Cross multiply
    83,245.50x = 114,878.79 × 45,519.75
  4. Step 4: Simplify right side
    83,245.50x = 5,229,253,801.10
  5. Step 5: Solve for x
    x = 5,229,253,801.10/83,245.50
  6. Step 6: Final answer
    x = 62,817.26

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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.