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Finding the Fourth Proportional to 356,553.18, 492,044.10 and 195,414.21

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Solution

The fourth proportional to 356,553.18, 492,044.10 and 195,414.21 is: 269,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,553.18 : 492,044.10 = 195,414.21 : x
  2. Step 2: Convert to fraction form
    356,553.18/492,044.10 = 195,414.21/x
  3. Step 3: Cross multiply
    356,553.18x = 492,044.10 × 195,414.21
  4. Step 4: Simplify right side
    356,553.18x = 96,152,409,086.66
  5. Step 5: Solve for x
    x = 96,152,409,086.66/356,553.18
  6. Step 6: Final answer
    x = 269,672.00

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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.