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Finding the Fourth Proportional to 172,985.32, 259,251.90 and 88,674.04

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Solution

The fourth proportional to 172,985.32, 259,251.90 and 88,674.04 is: 132,895.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,985.32 : 259,251.90 = 88,674.04 : x
  2. Step 2: Convert to fraction form
    172,985.32/259,251.90 = 88,674.04/x
  3. Step 3: Cross multiply
    172,985.32x = 259,251.90 × 88,674.04
  4. Step 4: Simplify right side
    172,985.32x = 22,988,913,350.68
  5. Step 5: Solve for x
    x = 22,988,913,350.68/172,985.32
  6. Step 6: Final answer
    x = 132,895.17

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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.