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Finding the Fourth Proportional to 276,880.80, 415,167.60 and 110,480.80

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Solution

The fourth proportional to 276,880.80, 415,167.60 and 110,480.80 is: 165,659.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,880.80 : 415,167.60 = 110,480.80 : x
  2. Step 2: Convert to fraction form
    276,880.80/415,167.60 = 110,480.80/x
  3. Step 3: Cross multiply
    276,880.80x = 415,167.60 × 110,480.80
  4. Step 4: Simplify right side
    276,880.80x = 45,868,048,582.08
  5. Step 5: Solve for x
    x = 45,868,048,582.08/276,880.80
  6. Step 6: Final answer
    x = 165,659.91

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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.