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Finding the Fourth Proportional to 238,597.92, 329,273.76 and 131,178

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Solution

The fourth proportional to 238,597.92, 329,273.76 and 131,178 is: 181,030.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,597.92 : 329,273.76 = 131,178 : x
  2. Step 2: Convert to fraction form
    238,597.92/329,273.76 = 131,178/x
  3. Step 3: Cross multiply
    238,597.92x = 329,273.76 × 131,178
  4. Step 4: Simplify right side
    238,597.92x = 43,193,473,289.28
  5. Step 5: Solve for x
    x = 43,193,473,289.28/238,597.92
  6. Step 6: Final answer
    x = 181,030.38

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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.