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Finding the Fourth Proportional to 238,554.84, 329,205.78 and 131,124

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Solution

The fourth proportional to 238,554.84, 329,205.78 and 131,124 is: 180,951.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,554.84 : 329,205.78 = 131,124 : x
  2. Step 2: Convert to fraction form
    238,554.84/329,205.78 = 131,124/x
  3. Step 3: Cross multiply
    238,554.84x = 329,205.78 × 131,124
  4. Step 4: Simplify right side
    238,554.84x = 43,166,778,696.72
  5. Step 5: Solve for x
    x = 43,166,778,696.72/238,554.84
  6. Step 6: Final answer
    x = 180,951.18

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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.