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Finding the Fourth Proportional to 172,652.52, 258,892.02 and 100,628.61

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Solution

The fourth proportional to 172,652.52, 258,892.02 and 100,628.61 is: 150,892.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,652.52 : 258,892.02 = 100,628.61 : x
  2. Step 2: Convert to fraction form
    172,652.52/258,892.02 = 100,628.61/x
  3. Step 3: Cross multiply
    172,652.52x = 258,892.02 × 100,628.61
  4. Step 4: Simplify right side
    172,652.52x = 26,051,944,112.69
  5. Step 5: Solve for x
    x = 26,051,944,112.69/172,652.52
  6. Step 6: Final answer
    x = 150,892.35

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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.