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Finding the Fourth Proportional to 168,089.76, 231,963.40 and 92,638.24

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Solution

The fourth proportional to 168,089.76, 231,963.40 and 92,638.24 is: 127,840.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,089.76 : 231,963.40 = 92,638.24 : x
  2. Step 2: Convert to fraction form
    168,089.76/231,963.40 = 92,638.24/x
  3. Step 3: Cross multiply
    168,089.76x = 231,963.40 × 92,638.24
  4. Step 4: Simplify right side
    168,089.76x = 21,488,681,120.42
  5. Step 5: Solve for x
    x = 21,488,681,120.42/168,089.76
  6. Step 6: Final answer
    x = 127,840.51

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1.5x scale

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.