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Finding the Fourth Proportional to 83,992.95, 115,885.49 and 49,974.17

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Solution

The fourth proportional to 83,992.95, 115,885.49 and 49,974.17 is: 68,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,992.95 : 115,885.49 = 49,974.17 : x
  2. Step 2: Convert to fraction form
    83,992.95/115,885.49 = 49,974.17/x
  3. Step 3: Cross multiply
    83,992.95x = 115,885.49 × 49,974.17
  4. Step 4: Simplify right side
    83,992.95x = 5,791,280,348.50
  5. Step 5: Solve for x
    x = 5,791,280,348.50/83,992.95
  6. Step 6: Final answer
    x = 68,949.60

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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.