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Finding the Fourth Proportional to 368,243.82, 508,135.17 and 207,095.40

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Solution

The fourth proportional to 368,243.82, 508,135.17 and 207,095.40 is: 285,768.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,243.82 : 508,135.17 = 207,095.40 : x
  2. Step 2: Convert to fraction form
    368,243.82/508,135.17 = 207,095.40/x
  3. Step 3: Cross multiply
    368,243.82x = 508,135.17 × 207,095.40
  4. Step 4: Simplify right side
    368,243.82x = 105,232,456,285.22
  5. Step 5: Solve for x
    x = 105,232,456,285.22/368,243.82
  6. Step 6: Final answer
    x = 285,768.42

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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.