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Finding the Fourth Proportional to 481,480.98, 722,219.70 and 144,520.17

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Solution

The fourth proportional to 481,480.98, 722,219.70 and 144,520.17 is: 216,779.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,480.98 : 722,219.70 = 144,520.17 : x
  2. Step 2: Convert to fraction form
    481,480.98/722,219.70 = 144,520.17/x
  3. Step 3: Cross multiply
    481,480.98x = 722,219.70 × 144,520.17
  4. Step 4: Simplify right side
    481,480.98x = 104,375,313,821.35
  5. Step 5: Solve for x
    x = 104,375,313,821.35/481,480.98
  6. Step 6: Final answer
    x = 216,779.72

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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.