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Finding the Fourth Proportional to 185,351.89, 277,861.38 and 90,528.43

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Solution

The fourth proportional to 185,351.89, 277,861.38 and 90,528.43 is: 135,711.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,351.89 : 277,861.38 = 90,528.43 : x
  2. Step 2: Convert to fraction form
    185,351.89/277,861.38 = 90,528.43/x
  3. Step 3: Cross multiply
    185,351.89x = 277,861.38 × 90,528.43
  4. Step 4: Simplify right side
    185,351.89x = 25,154,354,489.03
  5. Step 5: Solve for x
    x = 25,154,354,489.03/185,351.89
  6. Step 6: Final answer
    x = 135,711.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.