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Finding the Fourth Proportional to 79,856.80, 119,799.60 and 33,114.40

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Solution

The fourth proportional to 79,856.80, 119,799.60 and 33,114.40 is: 49,677.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,856.80 : 119,799.60 = 33,114.40 : x
  2. Step 2: Convert to fraction form
    79,856.80/119,799.60 = 33,114.40/x
  3. Step 3: Cross multiply
    79,856.80x = 119,799.60 × 33,114.40
  4. Step 4: Simplify right side
    79,856.80x = 3,967,091,874.24
  5. Step 5: Solve for x
    x = 3,967,091,874.24/79,856.80
  6. Step 6: Final answer
    x = 49,677.57

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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.