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Finding the Fourth Proportional to 89,296.46, 133,944.68 and 69,589.76

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Solution

The fourth proportional to 89,296.46, 133,944.68 and 69,589.76 is: 104,384.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,296.46 : 133,944.68 = 69,589.76 : x
  2. Step 2: Convert to fraction form
    89,296.46/133,944.68 = 69,589.76/x
  3. Step 3: Cross multiply
    89,296.46x = 133,944.68 × 69,589.76
  4. Step 4: Simplify right side
    89,296.46x = 9,321,178,134.48
  5. Step 5: Solve for x
    x = 9,321,178,134.48/89,296.46
  6. Step 6: Final answer
    x = 104,384.63

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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.