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Finding the Fourth Proportional to 89,473.39, 123,459.90 and 51,226.90

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Solution

The fourth proportional to 89,473.39, 123,459.90 and 51,226.90 is: 70,685.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,473.39 : 123,459.90 = 51,226.90 : x
  2. Step 2: Convert to fraction form
    89,473.39/123,459.90 = 51,226.90/x
  3. Step 3: Cross multiply
    89,473.39x = 123,459.90 × 51,226.90
  4. Step 4: Simplify right side
    89,473.39x = 6,324,467,951.31
  5. Step 5: Solve for x
    x = 6,324,467,951.31/89,473.39
  6. Step 6: Final answer
    x = 70,685.46

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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.