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Finding the Fourth Proportional to 265,775.17, 398,662.77 and 108,015.94

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Solution

The fourth proportional to 265,775.17, 398,662.77 and 108,015.94 is: 162,023.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,775.17 : 398,662.77 = 108,015.94 : x
  2. Step 2: Convert to fraction form
    265,775.17/398,662.77 = 108,015.94/x
  3. Step 3: Cross multiply
    265,775.17x = 398,662.77 × 108,015.94
  4. Step 4: Simplify right side
    265,775.17x = 43,061,933,844.55
  5. Step 5: Solve for x
    x = 43,061,933,844.55/265,775.17
  6. Step 6: Final answer
    x = 162,023.92

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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.