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Finding the Fourth Proportional to 173,288.30, 260,028.56 and 84,542.54

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Solution

The fourth proportional to 173,288.30, 260,028.56 and 84,542.54 is: 126,860.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,288.30 : 260,028.56 = 84,542.54 : x
  2. Step 2: Convert to fraction form
    173,288.30/260,028.56 = 84,542.54/x
  3. Step 3: Cross multiply
    173,288.30x = 260,028.56 × 84,542.54
  4. Step 4: Simplify right side
    173,288.30x = 21,983,473,846.16
  5. Step 5: Solve for x
    x = 21,983,473,846.16/173,288.30
  6. Step 6: Final answer
    x = 126,860.70

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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.