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Finding the Fourth Proportional to 245,696.97, 339,064.23 and 136,802.82

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Solution

The fourth proportional to 245,696.97, 339,064.23 and 136,802.82 is: 188,789.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,696.97 : 339,064.23 = 136,802.82 : x
  2. Step 2: Convert to fraction form
    245,696.97/339,064.23 = 136,802.82/x
  3. Step 3: Cross multiply
    245,696.97x = 339,064.23 × 136,802.82
  4. Step 4: Simplify right side
    245,696.97x = 46,384,944,609.63
  5. Step 5: Solve for x
    x = 46,384,944,609.63/245,696.97
  6. Step 6: Final answer
    x = 188,789.24

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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.