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Finding the Fourth Proportional to 238,363.50, 328,861.54 and 134,983.61

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Solution

The fourth proportional to 238,363.50, 328,861.54 and 134,983.61 is: 186,232.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,363.50 : 328,861.54 = 134,983.61 : x
  2. Step 2: Convert to fraction form
    238,363.50/328,861.54 = 134,983.61/x
  3. Step 3: Cross multiply
    238,363.50x = 328,861.54 × 134,983.61
  4. Step 4: Simplify right side
    238,363.50x = 44,390,915,540.13
  5. Step 5: Solve for x
    x = 44,390,915,540.13/238,363.50
  6. Step 6: Final answer
    x = 186,232.02

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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.