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Finding the Fourth Proportional to 202,474.56, 279,416.97 and 111,832.83

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Solution

The fourth proportional to 202,474.56, 279,416.97 and 111,832.83 is: 154,330.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,474.56 : 279,416.97 = 111,832.83 : x
  2. Step 2: Convert to fraction form
    202,474.56/279,416.97 = 111,832.83/x
  3. Step 3: Cross multiply
    202,474.56x = 279,416.97 × 111,832.83
  4. Step 4: Simplify right side
    202,474.56x = 31,247,990,505.13
  5. Step 5: Solve for x
    x = 31,247,990,505.13/202,474.56
  6. Step 6: Final answer
    x = 154,330.45

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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.