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Finding the Fourth Proportional to 135,856.46, 203,819.28 and 61,004.91

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Solution

The fourth proportional to 135,856.46, 203,819.28 and 61,004.91 is: 91,522.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,856.46 : 203,819.28 = 61,004.91 : x
  2. Step 2: Convert to fraction form
    135,856.46/203,819.28 = 61,004.91/x
  3. Step 3: Cross multiply
    135,856.46x = 203,819.28 × 61,004.91
  4. Step 4: Simplify right side
    135,856.46x = 12,433,976,832.66
  5. Step 5: Solve for x
    x = 12,433,976,832.66/135,856.46
  6. Step 6: Final answer
    x = 91,522.90

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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.