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Finding the Fourth Proportional to 196,620, 271,335.28 and 111,737.12

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Solution

The fourth proportional to 196,620, 271,335.28 and 111,737.12 is: 154,197.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,620 : 271,335.28 = 111,737.12 : x
  2. Step 2: Convert to fraction form
    196,620/271,335.28 = 111,737.12/x
  3. Step 3: Cross multiply
    196,620x = 271,335.28 × 111,737.12
  4. Step 4: Simplify right side
    196,620x = 30,318,222,741.59
  5. Step 5: Solve for x
    x = 30,318,222,741.59/196,620
  6. Step 6: Final answer
    x = 154,197.04

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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.