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Finding the Fourth Proportional to 247,982.88, 341,637.84 and 172,400.16

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Solution

The fourth proportional to 247,982.88, 341,637.84 and 172,400.16 is: 237,510.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,982.88 : 341,637.84 = 172,400.16 : x
  2. Step 2: Convert to fraction form
    247,982.88/341,637.84 = 172,400.16/x
  3. Step 3: Cross multiply
    247,982.88x = 341,637.84 × 172,400.16
  4. Step 4: Simplify right side
    247,982.88x = 58,898,418,278.05
  5. Step 5: Solve for x
    x = 58,898,418,278.05/247,982.88
  6. Step 6: Final answer
    x = 237,510.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.