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Finding the Fourth Proportional to 144,040.80, 215,542.80 and 97,384.80

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Solution

The fourth proportional to 144,040.80, 215,542.80 and 97,384.80 is: 145,726.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,040.80 : 215,542.80 = 97,384.80 : x
  2. Step 2: Convert to fraction form
    144,040.80/215,542.80 = 97,384.80/x
  3. Step 3: Cross multiply
    144,040.80x = 215,542.80 × 97,384.80
  4. Step 4: Simplify right side
    144,040.80x = 20,990,592,469.44
  5. Step 5: Solve for x
    x = 20,990,592,469.44/144,040.80
  6. Step 6: Final answer
    x = 145,726.71

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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.