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Finding the Fourth Proportional to 505,979.60, 758,969.40 and 132,002.60

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Solution

The fourth proportional to 505,979.60, 758,969.40 and 132,002.60 is: 198,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,979.60 : 758,969.40 = 132,002.60 : x
  2. Step 2: Convert to fraction form
    505,979.60/758,969.40 = 132,002.60/x
  3. Step 3: Cross multiply
    505,979.60x = 758,969.40 × 132,002.60
  4. Step 4: Simplify right side
    505,979.60x = 100,185,934,120.44
  5. Step 5: Solve for x
    x = 100,185,934,120.44/505,979.60
  6. Step 6: Final answer
    x = 198,003.90

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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.