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Finding the Fourth Proportional to 172,401.78, 258,601.80 and 44,317.92

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Solution

The fourth proportional to 172,401.78, 258,601.80 and 44,317.92 is: 66,476.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,401.78 : 258,601.80 = 44,317.92 : x
  2. Step 2: Convert to fraction form
    172,401.78/258,601.80 = 44,317.92/x
  3. Step 3: Cross multiply
    172,401.78x = 258,601.80 × 44,317.92
  4. Step 4: Simplify right side
    172,401.78x = 11,460,693,884.26
  5. Step 5: Solve for x
    x = 11,460,693,884.26/172,401.78
  6. Step 6: Final answer
    x = 66,476.66

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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.