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Finding the Fourth Proportional to 481,691.52, 722,574.63 and 144,705.80

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Solution

The fourth proportional to 481,691.52, 722,574.63 and 144,705.80 is: 217,069.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,691.52 : 722,574.63 = 144,705.80 : x
  2. Step 2: Convert to fraction form
    481,691.52/722,574.63 = 144,705.80/x
  3. Step 3: Cross multiply
    481,691.52x = 722,574.63 × 144,705.80
  4. Step 4: Simplify right side
    481,691.52x = 104,560,736,280.98
  5. Step 5: Solve for x
    x = 104,560,736,280.98/481,691.52
  6. Step 6: Final answer
    x = 217,069.91

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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.