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Finding the Fourth Proportional to 274,395.70, 378,724.89 and 167,000.32

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Solution

The fourth proportional to 274,395.70, 378,724.89 and 167,000.32 is: 230,496.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,395.70 : 378,724.89 = 167,000.32 : x
  2. Step 2: Convert to fraction form
    274,395.70/378,724.89 = 167,000.32/x
  3. Step 3: Cross multiply
    274,395.70x = 378,724.89 × 167,000.32
  4. Step 4: Simplify right side
    274,395.70x = 63,247,177,821.96
  5. Step 5: Solve for x
    x = 63,247,177,821.96/274,395.70
  6. Step 6: Final answer
    x = 230,496.24

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1.5x scale

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.