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Finding the Fourth Proportional to 274,294.88, 378,558.33 and 153,466.78

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Solution

The fourth proportional to 274,294.88, 378,558.33 and 153,466.78 is: 211,801.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,294.88 : 378,558.33 = 153,466.78 : x
  2. Step 2: Convert to fraction form
    274,294.88/378,558.33 = 153,466.78/x
  3. Step 3: Cross multiply
    274,294.88x = 378,558.33 × 153,466.78
  4. Step 4: Simplify right side
    274,294.88x = 58,096,127,947.28
  5. Step 5: Solve for x
    x = 58,096,127,947.28/274,294.88
  6. Step 6: Final answer
    x = 211,801.72

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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.