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Finding the Fourth Proportional to 172,607.08, 258,910.54 and 47,948.04

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Solution

The fourth proportional to 172,607.08, 258,910.54 and 47,948.04 is: 71,922.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,607.08 : 258,910.54 = 47,948.04 : x
  2. Step 2: Convert to fraction form
    172,607.08/258,910.54 = 47,948.04/x
  3. Step 3: Cross multiply
    172,607.08x = 258,910.54 × 47,948.04
  4. Step 4: Simplify right side
    172,607.08x = 12,414,252,928.34
  5. Step 5: Solve for x
    x = 12,414,252,928.34/172,607.08
  6. Step 6: Final answer
    x = 71,922.04

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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.