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Finding the Fourth Proportional to 264,695.80, 397,302.90 and 131,726.20

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Solution

The fourth proportional to 264,695.80, 397,302.90 and 131,726.20 is: 197,718.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,695.80 : 397,302.90 = 131,726.20 : x
  2. Step 2: Convert to fraction form
    264,695.80/397,302.90 = 131,726.20/x
  3. Step 3: Cross multiply
    264,695.80x = 397,302.90 × 131,726.20
  4. Step 4: Simplify right side
    264,695.80x = 52,335,201,265.98
  5. Step 5: Solve for x
    x = 52,335,201,265.98/264,695.80
  6. Step 6: Final answer
    x = 197,718.29

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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.