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Finding the Fourth Proportional to 167,401.64, 231,015.22 and 90,923.64

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Solution

The fourth proportional to 167,401.64, 231,015.22 and 90,923.64 is: 125,475.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,401.64 : 231,015.22 = 90,923.64 : x
  2. Step 2: Convert to fraction form
    167,401.64/231,015.22 = 90,923.64/x
  3. Step 3: Cross multiply
    167,401.64x = 231,015.22 × 90,923.64
  4. Step 4: Simplify right side
    167,401.64x = 21,004,744,697.80
  5. Step 5: Solve for x
    x = 21,004,744,697.80/167,401.64
  6. Step 6: Final answer
    x = 125,475.14

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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.