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Finding the Fourth Proportional to 271,469.95, 374,646.25 and 156,753.43

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Solution

The fourth proportional to 271,469.95, 374,646.25 and 156,753.43 is: 216,329.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,469.95 : 374,646.25 = 156,753.43 : x
  2. Step 2: Convert to fraction form
    271,469.95/374,646.25 = 156,753.43/x
  3. Step 3: Cross multiply
    271,469.95x = 374,646.25 × 156,753.43
  4. Step 4: Simplify right side
    271,469.95x = 58,727,085,268.87
  5. Step 5: Solve for x
    x = 58,727,085,268.87/271,469.95
  6. Step 6: Final answer
    x = 216,329.96

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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.