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Finding the Fourth Proportional to 89,135.40, 133,670.70 and 44,747.40

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Solution

The fourth proportional to 89,135.40, 133,670.70 and 44,747.40 is: 67,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,135.40 : 133,670.70 = 44,747.40 : x
  2. Step 2: Convert to fraction form
    89,135.40/133,670.70 = 44,747.40/x
  3. Step 3: Cross multiply
    89,135.40x = 133,670.70 × 44,747.40
  4. Step 4: Simplify right side
    89,135.40x = 5,981,416,281.18
  5. Step 5: Solve for x
    x = 5,981,416,281.18/89,135.40
  6. Step 6: Final answer
    x = 67,104.83

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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.