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Finding the Fourth Proportional to 238,898.97, 329,712.12 and 154,262.07

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Solution

The fourth proportional to 238,898.97, 329,712.12 and 154,262.07 is: 212,902.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,898.97 : 329,712.12 = 154,262.07 : x
  2. Step 2: Convert to fraction form
    238,898.97/329,712.12 = 154,262.07/x
  3. Step 3: Cross multiply
    238,898.97x = 329,712.12 × 154,262.07
  4. Step 4: Simplify right side
    238,898.97x = 50,862,074,135.29
  5. Step 5: Solve for x
    x = 50,862,074,135.29/238,898.97
  6. Step 6: Final answer
    x = 212,902.02

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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.