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Finding the Fourth Proportional to 89,165.28, 133,747.92 and 36,574.56

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Solution

The fourth proportional to 89,165.28, 133,747.92 and 36,574.56 is: 54,861.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,165.28 : 133,747.92 = 36,574.56 : x
  2. Step 2: Convert to fraction form
    89,165.28/133,747.92 = 36,574.56/x
  3. Step 3: Cross multiply
    89,165.28x = 133,747.92 × 36,574.56
  4. Step 4: Simplify right side
    89,165.28x = 4,891,771,324.92
  5. Step 5: Solve for x
    x = 4,891,771,324.92/89,165.28
  6. Step 6: Final answer
    x = 54,861.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.