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Finding the Fourth Proportional to 203,498.92, 305,262.06 and 70,392.04

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Solution

The fourth proportional to 203,498.92, 305,262.06 and 70,392.04 is: 105,592.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,498.92 : 305,262.06 = 70,392.04 : x
  2. Step 2: Convert to fraction form
    203,498.92/305,262.06 = 70,392.04/x
  3. Step 3: Cross multiply
    203,498.92x = 305,262.06 × 70,392.04
  4. Step 4: Simplify right side
    203,498.92x = 21,488,019,138.00
  5. Step 5: Solve for x
    x = 21,488,019,138.00/203,498.92
  6. Step 6: Final answer
    x = 105,592.79

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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.