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Finding the Fourth Proportional to 103,422.55, 155,133.83 and 33,301.86

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Solution

The fourth proportional to 103,422.55, 155,133.83 and 33,301.86 is: 49,952.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,422.55 : 155,133.83 = 33,301.86 : x
  2. Step 2: Convert to fraction form
    103,422.55/155,133.83 = 33,301.86/x
  3. Step 3: Cross multiply
    103,422.55x = 155,133.83 × 33,301.86
  4. Step 4: Simplify right side
    103,422.55x = 5,166,245,087.92
  5. Step 5: Solve for x
    x = 5,166,245,087.92/103,422.55
  6. Step 6: Final answer
    x = 49,952.79

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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.