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Finding the Fourth Proportional to 339,356.82, 468,316.27 and 186,398.61

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Solution

The fourth proportional to 339,356.82, 468,316.27 and 186,398.61 is: 257,232.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,356.82 : 468,316.27 = 186,398.61 : x
  2. Step 2: Convert to fraction form
    339,356.82/468,316.27 = 186,398.61/x
  3. Step 3: Cross multiply
    339,356.82x = 468,316.27 × 186,398.61
  4. Step 4: Simplify right side
    339,356.82x = 87,293,501,768.38
  5. Step 5: Solve for x
    x = 87,293,501,768.38/339,356.82
  6. Step 6: Final answer
    x = 257,232.20

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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.