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Finding the Fourth Proportional to 75,652.80, 113,479.20 and 50,769.60

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Solution

The fourth proportional to 75,652.80, 113,479.20 and 50,769.60 is: 76,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,652.80 : 113,479.20 = 50,769.60 : x
  2. Step 2: Convert to fraction form
    75,652.80/113,479.20 = 50,769.60/x
  3. Step 3: Cross multiply
    75,652.80x = 113,479.20 × 50,769.60
  4. Step 4: Simplify right side
    75,652.80x = 5,761,293,592.32
  5. Step 5: Solve for x
    x = 5,761,293,592.32/75,652.80
  6. Step 6: Final answer
    x = 76,154.40

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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.