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Finding the Fourth Proportional to 270,716.28, 373,597.31 and 155,986.05

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Solution

The fourth proportional to 270,716.28, 373,597.31 and 155,986.05 is: 215,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,716.28 : 373,597.31 = 155,986.05 : x
  2. Step 2: Convert to fraction form
    270,716.28/373,597.31 = 155,986.05/x
  3. Step 3: Cross multiply
    270,716.28x = 373,597.31 × 155,986.05
  4. Step 4: Simplify right side
    270,716.28x = 58,275,970,468.48
  5. Step 5: Solve for x
    x = 58,275,970,468.48/270,716.28
  6. Step 6: Final answer
    x = 215,265.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.