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Finding the Fourth Proportional to 271,081.76, 374,082.78 and 156,365.14

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Solution

The fourth proportional to 271,081.76, 374,082.78 and 156,365.14 is: 215,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,081.76 : 374,082.78 = 156,365.14 : x
  2. Step 2: Convert to fraction form
    271,081.76/374,082.78 = 156,365.14/x
  3. Step 3: Cross multiply
    271,081.76x = 374,082.78 × 156,365.14
  4. Step 4: Simplify right side
    271,081.76x = 58,493,506,266.29
  5. Step 5: Solve for x
    x = 58,493,506,266.29/271,081.76
  6. Step 6: Final answer
    x = 215,778.10

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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.