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Finding the Fourth Proportional to 267,391.80, 369,168.46 and 172,064.16

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Solution

The fourth proportional to 267,391.80, 369,168.46 and 172,064.16 is: 237,556.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,391.80 : 369,168.46 = 172,064.16 : x
  2. Step 2: Convert to fraction form
    267,391.80/369,168.46 = 172,064.16/x
  3. Step 3: Cross multiply
    267,391.80x = 369,168.46 × 172,064.16
  4. Step 4: Simplify right side
    267,391.80x = 63,520,660,968.39
  5. Step 5: Solve for x
    x = 63,520,660,968.39/267,391.80
  6. Step 6: Final answer
    x = 237,556.50

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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.