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Finding the Fourth Proportional to 274,663.46, 379,004.25 and 153,787.94

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Solution

The fourth proportional to 274,663.46, 379,004.25 and 153,787.94 is: 212,209.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,663.46 : 379,004.25 = 153,787.94 : x
  2. Step 2: Convert to fraction form
    274,663.46/379,004.25 = 153,787.94/x
  3. Step 3: Cross multiply
    274,663.46x = 379,004.25 × 153,787.94
  4. Step 4: Simplify right side
    274,663.46x = 58,286,282,858.75
  5. Step 5: Solve for x
    x = 58,286,282,858.75/274,663.46
  6. Step 6: Final answer
    x = 212,209.82

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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.