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Finding the Fourth Proportional to 373,906.16, 515,987.78 and 204,140.29

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Solution

The fourth proportional to 373,906.16, 515,987.78 and 204,140.29 is: 281,712.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,906.16 : 515,987.78 = 204,140.29 : x
  2. Step 2: Convert to fraction form
    373,906.16/515,987.78 = 204,140.29/x
  3. Step 3: Cross multiply
    373,906.16x = 515,987.78 × 204,140.29
  4. Step 4: Simplify right side
    373,906.16x = 105,333,895,045.66
  5. Step 5: Solve for x
    x = 105,333,895,045.66/373,906.16
  6. Step 6: Final answer
    x = 281,712.11

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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.