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Finding the Fourth Proportional to 251,296.17, 346,791.39 and 136,574.82

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Solution

The fourth proportional to 251,296.17, 346,791.39 and 136,574.82 is: 188,474.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,296.17 : 346,791.39 = 136,574.82 : x
  2. Step 2: Convert to fraction form
    251,296.17/346,791.39 = 136,574.82/x
  3. Step 3: Cross multiply
    251,296.17x = 346,791.39 × 136,574.82
  4. Step 4: Simplify right side
    251,296.17x = 47,362,971,666.80
  5. Step 5: Solve for x
    x = 47,362,971,666.80/251,296.17
  6. Step 6: Final answer
    x = 188,474.71

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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.