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Finding the Fourth Proportional to 89,140.40, 133,678.20 and 44,752.40

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Solution

The fourth proportional to 89,140.40, 133,678.20 and 44,752.40 is: 67,112.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,140.40 : 133,678.20 = 44,752.40 : x
  2. Step 2: Convert to fraction form
    89,140.40/133,678.20 = 44,752.40/x
  3. Step 3: Cross multiply
    89,140.40x = 133,678.20 × 44,752.40
  4. Step 4: Simplify right side
    89,140.40x = 5,982,420,277.68
  5. Step 5: Solve for x
    x = 5,982,420,277.68/89,140.40
  6. Step 6: Final answer
    x = 67,112.33

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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.