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Finding the Fourth Proportional to 83,493.87, 124,945.16 and 51,918.80

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Solution

The fourth proportional to 83,493.87, 124,945.16 and 51,918.80 is: 77,694.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,493.87 : 124,945.16 = 51,918.80 : x
  2. Step 2: Convert to fraction form
    83,493.87/124,945.16 = 51,918.80/x
  3. Step 3: Cross multiply
    83,493.87x = 124,945.16 × 51,918.80
  4. Step 4: Simplify right side
    83,493.87x = 6,487,002,773.01
  5. Step 5: Solve for x
    x = 6,487,002,773.01/83,493.87
  6. Step 6: Final answer
    x = 77,694.36

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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.