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Finding the Fourth Proportional to 168,333.60, 252,500.40 and 85,216.80

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Solution

The fourth proportional to 168,333.60, 252,500.40 and 85,216.80 is: 127,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,333.60 : 252,500.40 = 85,216.80 : x
  2. Step 2: Convert to fraction form
    168,333.60/252,500.40 = 85,216.80/x
  3. Step 3: Cross multiply
    168,333.60x = 252,500.40 × 85,216.80
  4. Step 4: Simplify right side
    168,333.60x = 21,517,276,086.72
  5. Step 5: Solve for x
    x = 21,517,276,086.72/168,333.60
  6. Step 6: Final answer
    x = 127,825.20

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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.