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Finding the Fourth Proportional to 89,100.90, 122,958.90 and 48,817.17

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Solution

The fourth proportional to 89,100.90, 122,958.90 and 48,817.17 is: 67,367.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,100.90 : 122,958.90 = 48,817.17 : x
  2. Step 2: Convert to fraction form
    89,100.90/122,958.90 = 48,817.17/x
  3. Step 3: Cross multiply
    89,100.90x = 122,958.90 × 48,817.17
  4. Step 4: Simplify right side
    89,100.90x = 6,002,505,524.31
  5. Step 5: Solve for x
    x = 6,002,505,524.31/89,100.90
  6. Step 6: Final answer
    x = 67,367.51

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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.