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Finding the Fourth Proportional to 172,744.92, 259,080.66 and 72,866.52

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Solution

The fourth proportional to 172,744.92, 259,080.66 and 72,866.52 is: 109,284.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,744.92 : 259,080.66 = 72,866.52 : x
  2. Step 2: Convert to fraction form
    172,744.92/259,080.66 = 72,866.52/x
  3. Step 3: Cross multiply
    172,744.92x = 259,080.66 × 72,866.52
  4. Step 4: Simplify right side
    172,744.92x = 18,878,306,093.50
  5. Step 5: Solve for x
    x = 18,878,306,093.50/172,744.92
  6. Step 6: Final answer
    x = 109,284.29

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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.