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Finding the Fourth Proportional to 90,410.76, 124,769.97 and 54,593.64

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Solution

The fourth proportional to 90,410.76, 124,769.97 and 54,593.64 is: 75,341.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,410.76 : 124,769.97 = 54,593.64 : x
  2. Step 2: Convert to fraction form
    90,410.76/124,769.97 = 54,593.64/x
  3. Step 3: Cross multiply
    90,410.76x = 124,769.97 × 54,593.64
  4. Step 4: Simplify right side
    90,410.76x = 6,811,646,824.99
  5. Step 5: Solve for x
    x = 6,811,646,824.99/90,410.76
  6. Step 6: Final answer
    x = 75,341.11

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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.