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Finding the Fourth Proportional to 238,894.97, 329,677.53 and 136,918.22

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Solution

The fourth proportional to 238,894.97, 329,677.53 and 136,918.22 is: 188,948.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,894.97 : 329,677.53 = 136,918.22 : x
  2. Step 2: Convert to fraction form
    238,894.97/329,677.53 = 136,918.22/x
  3. Step 3: Cross multiply
    238,894.97x = 329,677.53 × 136,918.22
  4. Step 4: Simplify right side
    238,894.97x = 45,138,860,581.60
  5. Step 5: Solve for x
    x = 45,138,860,581.60/238,894.97
  6. Step 6: Final answer
    x = 188,948.56

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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.