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Finding the Fourth Proportional to 238,638.36, 329,371.05 and 151,367.01

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Solution

The fourth proportional to 238,638.36, 329,371.05 and 151,367.01 is: 208,918.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,638.36 : 329,371.05 = 151,367.01 : x
  2. Step 2: Convert to fraction form
    238,638.36/329,371.05 = 151,367.01/x
  3. Step 3: Cross multiply
    238,638.36x = 329,371.05 × 151,367.01
  4. Step 4: Simplify right side
    238,638.36x = 49,855,911,019.06
  5. Step 5: Solve for x
    x = 49,855,911,019.06/238,638.36
  6. Step 6: Final answer
    x = 208,918.26

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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.