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Finding the Fourth Proportional to 354,080.38, 531,203.58 and 140,860.36

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Solution

The fourth proportional to 354,080.38, 531,203.58 and 140,860.36 is: 211,323.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,080.38 : 531,203.58 = 140,860.36 : x
  2. Step 2: Convert to fraction form
    354,080.38/531,203.58 = 140,860.36/x
  3. Step 3: Cross multiply
    354,080.38x = 531,203.58 × 140,860.36
  4. Step 4: Simplify right side
    354,080.38x = 74,825,527,512.09
  5. Step 5: Solve for x
    x = 74,825,527,512.09/354,080.38
  6. Step 6: Final answer
    x = 211,323.56

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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.