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Finding the Fourth Proportional to 251,396.55, 346,934.07 and 136,682.91

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Solution

The fourth proportional to 251,396.55, 346,934.07 and 136,682.91 is: 188,626.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,396.55 : 346,934.07 = 136,682.91 : x
  2. Step 2: Convert to fraction form
    251,396.55/346,934.07 = 136,682.91/x
  3. Step 3: Cross multiply
    251,396.55x = 346,934.07 × 136,682.91
  4. Step 4: Simplify right side
    251,396.55x = 47,419,958,265.74
  5. Step 5: Solve for x
    x = 47,419,958,265.74/251,396.55
  6. Step 6: Final answer
    x = 188,626.13

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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.