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Finding the Fourth Proportional to 240,977.40, 361,401.30 and 72,497.40

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Solution

The fourth proportional to 240,977.40, 361,401.30 and 72,497.40 is: 108,726.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,977.40 : 361,401.30 = 72,497.40 : x
  2. Step 2: Convert to fraction form
    240,977.40/361,401.30 = 72,497.40/x
  3. Step 3: Cross multiply
    240,977.40x = 361,401.30 × 72,497.40
  4. Step 4: Simplify right side
    240,977.40x = 26,200,654,606.62
  5. Step 5: Solve for x
    x = 26,200,654,606.62/240,977.40
  6. Step 6: Final answer
    x = 108,726.61

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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.