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Finding the Fourth Proportional to 89,808.75, 123,935.77 and 49,523.13

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Solution

The fourth proportional to 89,808.75, 123,935.77 and 49,523.13 is: 68,341.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,808.75 : 123,935.77 = 49,523.13 : x
  2. Step 2: Convert to fraction form
    89,808.75/123,935.77 = 49,523.13/x
  3. Step 3: Cross multiply
    89,808.75x = 123,935.77 × 49,523.13
  4. Step 4: Simplify right side
    89,808.75x = 6,137,687,311.26
  5. Step 5: Solve for x
    x = 6,137,687,311.26/89,808.75
  6. Step 6: Final answer
    x = 68,341.75

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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.