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Finding the Fourth Proportional to 127,449.84, 191,062.98 and 48,511.56

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Solution

The fourth proportional to 127,449.84, 191,062.98 and 48,511.56 is: 72,724.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,449.84 : 191,062.98 = 48,511.56 : x
  2. Step 2: Convert to fraction form
    127,449.84/191,062.98 = 48,511.56/x
  3. Step 3: Cross multiply
    127,449.84x = 191,062.98 × 48,511.56
  4. Step 4: Simplify right side
    127,449.84x = 9,268,763,218.05
  5. Step 5: Solve for x
    x = 9,268,763,218.05/127,449.84
  6. Step 6: Final answer
    x = 72,724.79

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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.