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Finding the Fourth Proportional to 238,487.68, 329,091.60 and 131,056.48

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Solution

The fourth proportional to 238,487.68, 329,091.60 and 131,056.48 is: 180,846.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,487.68 : 329,091.60 = 131,056.48 : x
  2. Step 2: Convert to fraction form
    238,487.68/329,091.60 = 131,056.48/x
  3. Step 3: Cross multiply
    238,487.68x = 329,091.60 × 131,056.48
  4. Step 4: Simplify right side
    238,487.68x = 43,129,586,693.57
  5. Step 5: Solve for x
    x = 43,129,586,693.57/238,487.68
  6. Step 6: Final answer
    x = 180,846.18

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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.