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Finding the Fourth Proportional to 361,132.62, 541,403.31 and 136,365.51

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Solution

The fourth proportional to 361,132.62, 541,403.31 and 136,365.51 is: 204,436.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,132.62 : 541,403.31 = 136,365.51 : x
  2. Step 2: Convert to fraction form
    361,132.62/541,403.31 = 136,365.51/x
  3. Step 3: Cross multiply
    361,132.62x = 541,403.31 × 136,365.51
  4. Step 4: Simplify right side
    361,132.62x = 73,828,738,483.84
  5. Step 5: Solve for x
    x = 73,828,738,483.84/361,132.62
  6. Step 6: Final answer
    x = 204,436.64

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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.