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Finding the Fourth Proportional to 356,862.72, 492,476.85 and 195,716.37

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Solution

The fourth proportional to 356,862.72, 492,476.85 and 195,716.37 is: 270,092.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,862.72 : 492,476.85 = 195,716.37 : x
  2. Step 2: Convert to fraction form
    356,862.72/492,476.85 = 195,716.37/x
  3. Step 3: Cross multiply
    356,862.72x = 492,476.85 × 195,716.37
  4. Step 4: Simplify right side
    356,862.72x = 96,385,781,391.03
  5. Step 5: Solve for x
    x = 96,385,781,391.03/356,862.72
  6. Step 6: Final answer
    x = 270,092.04

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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.