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Finding the Fourth Proportional to 169,405.72, 233,778.24 and 92,923.24

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Solution

The fourth proportional to 169,405.72, 233,778.24 and 92,923.24 is: 128,233.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,405.72 : 233,778.24 = 92,923.24 : x
  2. Step 2: Convert to fraction form
    169,405.72/233,778.24 = 92,923.24/x
  3. Step 3: Cross multiply
    169,405.72x = 233,778.24 × 92,923.24
  4. Step 4: Simplify right side
    169,405.72x = 21,723,431,502.30
  5. Step 5: Solve for x
    x = 21,723,431,502.30/169,405.72
  6. Step 6: Final answer
    x = 128,233.16

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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.