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Finding the Fourth Proportional to 368,310.96, 508,263.93 and 207,165.97

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Solution

The fourth proportional to 368,310.96, 508,263.93 and 207,165.97 is: 285,886.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,310.96 : 508,263.93 = 207,165.97 : x
  2. Step 2: Convert to fraction form
    368,310.96/508,263.93 = 207,165.97/x
  3. Step 3: Cross multiply
    368,310.96x = 508,263.93 × 207,165.97
  4. Step 4: Simplify right side
    368,310.96x = 105,294,987,691.57
  5. Step 5: Solve for x
    x = 105,294,987,691.57/368,310.96
  6. Step 6: Final answer
    x = 285,886.11

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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.