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Finding the Fourth Proportional to 175,049.20, 262,573.80 and 81,737.20

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Solution

The fourth proportional to 175,049.20, 262,573.80 and 81,737.20 is: 122,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,049.20 : 262,573.80 = 81,737.20 : x
  2. Step 2: Convert to fraction form
    175,049.20/262,573.80 = 81,737.20/x
  3. Step 3: Cross multiply
    175,049.20x = 262,573.80 × 81,737.20
  4. Step 4: Simplify right side
    175,049.20x = 21,462,047,205.36
  5. Step 5: Solve for x
    x = 21,462,047,205.36/175,049.20
  6. Step 6: Final answer
    x = 122,605.80

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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.