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Finding the Fourth Proportional to 172,808.24, 259,372.73 and 88,630.61

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Solution

The fourth proportional to 172,808.24, 259,372.73 and 88,630.61 is: 133,028.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,808.24 : 259,372.73 = 88,630.61 : x
  2. Step 2: Convert to fraction form
    172,808.24/259,372.73 = 88,630.61/x
  3. Step 3: Cross multiply
    172,808.24x = 259,372.73 × 88,630.61
  4. Step 4: Simplify right side
    172,808.24x = 22,988,362,201.98
  5. Step 5: Solve for x
    x = 22,988,362,201.98/172,808.24
  6. Step 6: Final answer
    x = 133,028.16

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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.