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Finding the Fourth Proportional to 103,783.68, 155,660.40 and 33,652.80

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Solution

The fourth proportional to 103,783.68, 155,660.40 and 33,652.80 is: 50,474.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,783.68 : 155,660.40 = 33,652.80 : x
  2. Step 2: Convert to fraction form
    103,783.68/155,660.40 = 33,652.80/x
  3. Step 3: Cross multiply
    103,783.68x = 155,660.40 × 33,652.80
  4. Step 4: Simplify right side
    103,783.68x = 5,238,408,309.12
  5. Step 5: Solve for x
    x = 5,238,408,309.12/103,783.68
  6. Step 6: Final answer
    x = 50,474.30

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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.