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Finding the Fourth Proportional to 271,218.90, 406,733.94 and 111,248.76

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Solution

The fourth proportional to 271,218.90, 406,733.94 and 111,248.76 is: 166,834.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,218.90 : 406,733.94 = 111,248.76 : x
  2. Step 2: Convert to fraction form
    271,218.90/406,733.94 = 111,248.76/x
  3. Step 3: Cross multiply
    271,218.90x = 406,733.94 × 111,248.76
  4. Step 4: Simplify right side
    271,218.90x = 45,248,646,474.91
  5. Step 5: Solve for x
    x = 45,248,646,474.91/271,218.90
  6. Step 6: Final answer
    x = 166,834.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.