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Finding the Fourth Proportional to 154,231.30, 231,346.95 and 92,023.30

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Solution

The fourth proportional to 154,231.30, 231,346.95 and 92,023.30 is: 138,034.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,231.30 : 231,346.95 = 92,023.30 : x
  2. Step 2: Convert to fraction form
    154,231.30/231,346.95 = 92,023.30/x
  3. Step 3: Cross multiply
    154,231.30x = 231,346.95 × 92,023.30
  4. Step 4: Simplify right side
    154,231.30x = 21,289,309,783.94
  5. Step 5: Solve for x
    x = 21,289,309,783.94/154,231.30
  6. Step 6: Final answer
    x = 138,034.95

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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.