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Finding the Fourth Proportional to 110,190.48, 152,072.09 and 61,791.65

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Solution

The fourth proportional to 110,190.48, 152,072.09 and 61,791.65 is: 85,277.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,190.48 : 152,072.09 = 61,791.65 : x
  2. Step 2: Convert to fraction form
    110,190.48/152,072.09 = 61,791.65/x
  3. Step 3: Cross multiply
    110,190.48x = 152,072.09 × 61,791.65
  4. Step 4: Simplify right side
    110,190.48x = 9,396,784,290.73
  5. Step 5: Solve for x
    x = 9,396,784,290.73/110,190.48
  6. Step 6: Final answer
    x = 85,277.64

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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.