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Finding the Fourth Proportional to 238,864.71, 329,523.08 and 154,009.11

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Solution

The fourth proportional to 238,864.71, 329,523.08 and 154,009.11 is: 212,461.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,864.71 : 329,523.08 = 154,009.11 : x
  2. Step 2: Convert to fraction form
    238,864.71/329,523.08 = 154,009.11/x
  3. Step 3: Cross multiply
    238,864.71x = 329,523.08 × 154,009.11
  4. Step 4: Simplify right side
    238,864.71x = 50,749,555,505.21
  5. Step 5: Solve for x
    x = 50,749,555,505.21/238,864.71
  6. Step 6: Final answer
    x = 212,461.50

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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.