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Finding the Fourth Proportional to 172,871.52, 259,409.32 and 73,025.24

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Solution

The fourth proportional to 172,871.52, 259,409.32 and 73,025.24 is: 109,580.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,871.52 : 259,409.32 = 73,025.24 : x
  2. Step 2: Convert to fraction form
    172,871.52/259,409.32 = 73,025.24/x
  3. Step 3: Cross multiply
    172,871.52x = 259,409.32 × 73,025.24
  4. Step 4: Simplify right side
    172,871.52x = 18,943,427,851.24
  5. Step 5: Solve for x
    x = 18,943,427,851.24/172,871.52
  6. Step 6: Final answer
    x = 109,580.96

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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.