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Finding the Fourth Proportional to 242,135.52, 363,203.27 and 108,990.96

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Solution

The fourth proportional to 242,135.52, 363,203.27 and 108,990.96 is: 163,486.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,135.52 : 363,203.27 = 108,990.96 : x
  2. Step 2: Convert to fraction form
    242,135.52/363,203.27 = 108,990.96/x
  3. Step 3: Cross multiply
    242,135.52x = 363,203.27 × 108,990.96
  4. Step 4: Simplify right side
    242,135.52x = 39,585,873,072.44
  5. Step 5: Solve for x
    x = 39,585,873,072.44/242,135.52
  6. Step 6: Final answer
    x = 163,486.44

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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.