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Finding the Fourth Proportional to 100,043.60, 149,990.86 and 33,444.32

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Solution

The fourth proportional to 100,043.60, 149,990.86 and 33,444.32 is: 50,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,043.60 : 149,990.86 = 33,444.32 : x
  2. Step 2: Convert to fraction form
    100,043.60/149,990.86 = 33,444.32/x
  3. Step 3: Cross multiply
    100,043.60x = 149,990.86 × 33,444.32
  4. Step 4: Simplify right side
    100,043.60x = 5,016,342,318.92
  5. Step 5: Solve for x
    x = 5,016,342,318.92/100,043.60
  6. Step 6: Final answer
    x = 50,141.56

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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.