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Finding the Fourth Proportional to 89,190.82, 123,081.90 and 48,904.92

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Solution

The fourth proportional to 89,190.82, 123,081.90 and 48,904.92 is: 67,488.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,190.82 : 123,081.90 = 48,904.92 : x
  2. Step 2: Convert to fraction form
    89,190.82/123,081.90 = 48,904.92/x
  3. Step 3: Cross multiply
    89,190.82x = 123,081.90 × 48,904.92
  4. Step 4: Simplify right side
    89,190.82x = 6,019,310,472.95
  5. Step 5: Solve for x
    x = 6,019,310,472.95/89,190.82
  6. Step 6: Final answer
    x = 67,488.00

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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.