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Finding the Fourth Proportional to 96,661.80, 145,049.15 and 40,497.11

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Solution

The fourth proportional to 96,661.80, 145,049.15 and 40,497.11 is: 60,769.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,661.80 : 145,049.15 = 40,497.11 : x
  2. Step 2: Convert to fraction form
    96,661.80/145,049.15 = 40,497.11/x
  3. Step 3: Cross multiply
    96,661.80x = 145,049.15 × 40,497.11
  4. Step 4: Simplify right side
    96,661.80x = 5,874,070,455.23
  5. Step 5: Solve for x
    x = 5,874,070,455.23/96,661.80
  6. Step 6: Final answer
    x = 60,769.31

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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.