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Finding the Fourth Proportional to 154,229.20, 230,998.20 and 92,021.20

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Solution

The fourth proportional to 154,229.20, 230,998.20 and 92,021.20 is: 137,825.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,229.20 : 230,998.20 = 92,021.20 : x
  2. Step 2: Convert to fraction form
    154,229.20/230,998.20 = 92,021.20/x
  3. Step 3: Cross multiply
    154,229.20x = 230,998.20 × 92,021.20
  4. Step 4: Simplify right side
    154,229.20x = 21,256,731,561.84
  5. Step 5: Solve for x
    x = 21,256,731,561.84/154,229.20
  6. Step 6: Final answer
    x = 137,825.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.