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Finding the Fourth Proportional to 271,054.15, 374,044.64 and 156,337.49

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Solution

The fourth proportional to 271,054.15, 374,044.64 and 156,337.49 is: 215,739.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,054.15 : 374,044.64 = 156,337.49 : x
  2. Step 2: Convert to fraction form
    271,054.15/374,044.64 = 156,337.49/x
  3. Step 3: Cross multiply
    271,054.15x = 374,044.64 × 156,337.49
  4. Step 4: Simplify right side
    271,054.15x = 58,477,200,318.98
  5. Step 5: Solve for x
    x = 58,477,200,318.98/271,054.15
  6. Step 6: Final answer
    x = 215,739.92

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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.