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Finding the Fourth Proportional to 103,679.28, 155,486.52 and 33,544.08

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Solution

The fourth proportional to 103,679.28, 155,486.52 and 33,544.08 is: 50,305.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,679.28 : 155,486.52 = 33,544.08 : x
  2. Step 2: Convert to fraction form
    103,679.28/155,486.52 = 33,544.08/x
  3. Step 3: Cross multiply
    103,679.28x = 155,486.52 × 33,544.08
  4. Step 4: Simplify right side
    103,679.28x = 5,215,652,265.80
  5. Step 5: Solve for x
    x = 5,215,652,265.80/103,679.28
  6. Step 6: Final answer
    x = 50,305.64

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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.