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Finding the Fourth Proportional to 173,251.65, 259,894.50 and 72,028.80

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Solution

The fourth proportional to 173,251.65, 259,894.50 and 72,028.80 is: 108,050.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,251.65 : 259,894.50 = 72,028.80 : x
  2. Step 2: Convert to fraction form
    173,251.65/259,894.50 = 72,028.80/x
  3. Step 3: Cross multiply
    173,251.65x = 259,894.50 × 72,028.80
  4. Step 4: Simplify right side
    173,251.65x = 18,719,888,961.60
  5. Step 5: Solve for x
    x = 18,719,888,961.60/173,251.65
  6. Step 6: Final answer
    x = 108,050.28

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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.