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Finding the Fourth Proportional to 172,294.11, 258,446.03 and 47,635.11

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Solution

The fourth proportional to 172,294.11, 258,446.03 and 47,635.11 is: 71,454.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,294.11 : 258,446.03 = 47,635.11 : x
  2. Step 2: Convert to fraction form
    172,294.11/258,446.03 = 47,635.11/x
  3. Step 3: Cross multiply
    172,294.11x = 258,446.03 × 47,635.11
  4. Step 4: Simplify right side
    172,294.11x = 12,311,104,829.94
  5. Step 5: Solve for x
    x = 12,311,104,829.94/172,294.11
  6. Step 6: Final answer
    x = 71,454.01

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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.