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Finding the Fourth Proportional to 170,611.60, 255,917.40 and 52,301.20

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Solution

The fourth proportional to 170,611.60, 255,917.40 and 52,301.20 is: 78,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,611.60 : 255,917.40 = 52,301.20 : x
  2. Step 2: Convert to fraction form
    170,611.60/255,917.40 = 52,301.20/x
  3. Step 3: Cross multiply
    170,611.60x = 255,917.40 × 52,301.20
  4. Step 4: Simplify right side
    170,611.60x = 13,384,787,120.88
  5. Step 5: Solve for x
    x = 13,384,787,120.88/170,611.60
  6. Step 6: Final answer
    x = 78,451.80

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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.