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Finding the Fourth Proportional to 172,351.95, 258,527.79 and 54,023.24

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Solution

The fourth proportional to 172,351.95, 258,527.79 and 54,023.24 is: 81,034.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,351.95 : 258,527.79 = 54,023.24 : x
  2. Step 2: Convert to fraction form
    172,351.95/258,527.79 = 54,023.24/x
  3. Step 3: Cross multiply
    172,351.95x = 258,527.79 × 54,023.24
  4. Step 4: Simplify right side
    172,351.95x = 13,966,507,553.20
  5. Step 5: Solve for x
    x = 13,966,507,553.20/172,351.95
  6. Step 6: Final answer
    x = 81,034.81

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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.