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Finding the Fourth Proportional to 236,904.39, 355,304.40 and 68,388.12

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Solution

The fourth proportional to 236,904.39, 355,304.40 and 68,388.12 is: 102,567.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,904.39 : 355,304.40 = 68,388.12 : x
  2. Step 2: Convert to fraction form
    236,904.39/355,304.40 = 68,388.12/x
  3. Step 3: Cross multiply
    236,904.39x = 355,304.40 × 68,388.12
  4. Step 4: Simplify right side
    236,904.39x = 24,298,599,943.73
  5. Step 5: Solve for x
    x = 24,298,599,943.73/236,904.39
  6. Step 6: Final answer
    x = 102,567.12

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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.