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Finding the Fourth Proportional to 172,653.15, 258,812.31 and 88,453.02

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Solution

The fourth proportional to 172,653.15, 258,812.31 and 88,453.02 is: 132,593.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,653.15 : 258,812.31 = 88,453.02 : x
  2. Step 2: Convert to fraction form
    172,653.15/258,812.31 = 88,453.02/x
  3. Step 3: Cross multiply
    172,653.15x = 258,812.31 × 88,453.02
  4. Step 4: Simplify right side
    172,653.15x = 22,892,730,432.68
  5. Step 5: Solve for x
    x = 22,892,730,432.68/172,653.15
  6. Step 6: Final answer
    x = 132,593.76

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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.