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Finding the Fourth Proportional to 99,422.40, 149,133.60 and 33,758.40

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Solution

The fourth proportional to 99,422.40, 149,133.60 and 33,758.40 is: 50,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,422.40 : 149,133.60 = 33,758.40 : x
  2. Step 2: Convert to fraction form
    99,422.40/149,133.60 = 33,758.40/x
  3. Step 3: Cross multiply
    99,422.40x = 149,133.60 × 33,758.40
  4. Step 4: Simplify right side
    99,422.40x = 5,034,511,722.24
  5. Step 5: Solve for x
    x = 5,034,511,722.24/99,422.40
  6. Step 6: Final answer
    x = 50,637.60

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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.