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Finding the Fourth Proportional to 132,145.75, 198,247.79 and 49,039.75

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Solution

The fourth proportional to 132,145.75, 198,247.79 and 49,039.75 is: 73,570.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,145.75 : 198,247.79 = 49,039.75 : x
  2. Step 2: Convert to fraction form
    132,145.75/198,247.79 = 49,039.75/x
  3. Step 3: Cross multiply
    132,145.75x = 198,247.79 × 49,039.75
  4. Step 4: Simplify right side
    132,145.75x = 9,722,022,059.65
  5. Step 5: Solve for x
    x = 9,722,022,059.65/132,145.75
  6. Step 6: Final answer
    x = 73,570.45

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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.