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Finding the Fourth Proportional to 172,405.24, 258,849.88 and 88,225.84

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Solution

The fourth proportional to 172,405.24, 258,849.88 and 88,225.84 is: 132,462.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,405.24 : 258,849.88 = 88,225.84 : x
  2. Step 2: Convert to fraction form
    172,405.24/258,849.88 = 88,225.84/x
  3. Step 3: Cross multiply
    172,405.24x = 258,849.88 × 88,225.84
  4. Step 4: Simplify right side
    172,405.24x = 22,837,248,096.90
  5. Step 5: Solve for x
    x = 22,837,248,096.90/172,405.24
  6. Step 6: Final answer
    x = 132,462.61

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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.