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Finding the Fourth Proportional to 89,281.57, 133,836.92 and 33,106.65

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Solution

The fourth proportional to 89,281.57, 133,836.92 and 33,106.65 is: 49,628.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,281.57 : 133,836.92 = 33,106.65 : x
  2. Step 2: Convert to fraction form
    89,281.57/133,836.92 = 33,106.65/x
  3. Step 3: Cross multiply
    89,281.57x = 133,836.92 × 33,106.65
  4. Step 4: Simplify right side
    89,281.57x = 4,430,892,067.52
  5. Step 5: Solve for x
    x = 4,430,892,067.52/89,281.57
  6. Step 6: Final answer
    x = 49,628.29

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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.