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Finding the Fourth Proportional to 101,245.57, 151,892.96 and 31,124.88

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Solution

The fourth proportional to 101,245.57, 151,892.96 and 31,124.88 is: 46,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,245.57 : 151,892.96 = 31,124.88 : x
  2. Step 2: Convert to fraction form
    101,245.57/151,892.96 = 31,124.88/x
  3. Step 3: Cross multiply
    101,245.57x = 151,892.96 × 31,124.88
  4. Step 4: Simplify right side
    101,245.57x = 4,727,650,555.73
  5. Step 5: Solve for x
    x = 4,727,650,555.73/101,245.57
  6. Step 6: Final answer
    x = 46,694.89

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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.