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Finding the Fourth Proportional to 83,857.41, 115,718.13 and 45,616.68

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Solution

The fourth proportional to 83,857.41, 115,718.13 and 45,616.68 is: 62,948.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,857.41 : 115,718.13 = 45,616.68 : x
  2. Step 2: Convert to fraction form
    83,857.41/115,718.13 = 45,616.68/x
  3. Step 3: Cross multiply
    83,857.41x = 115,718.13 × 45,616.68
  4. Step 4: Simplify right side
    83,857.41x = 5,278,676,906.41
  5. Step 5: Solve for x
    x = 5,278,676,906.41/83,857.41
  6. Step 6: Final answer
    x = 62,948.25

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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.