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Finding the Fourth Proportional to 273,153.12, 376,954.12 and 158,439.48

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Solution

The fourth proportional to 273,153.12, 376,954.12 and 158,439.48 is: 218,648.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,153.12 : 376,954.12 = 158,439.48 : x
  2. Step 2: Convert to fraction form
    273,153.12/376,954.12 = 158,439.48/x
  3. Step 3: Cross multiply
    273,153.12x = 376,954.12 × 158,439.48
  4. Step 4: Simplify right side
    273,153.12x = 59,724,414,756.66
  5. Step 5: Solve for x
    x = 59,724,414,756.66/273,153.12
  6. Step 6: Final answer
    x = 218,648.11

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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.