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Finding the Fourth Proportional to 204,708.02, 307,098.48 and 69,764.61

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Solution

The fourth proportional to 204,708.02, 307,098.48 and 69,764.61 is: 104,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,708.02 : 307,098.48 = 69,764.61 : x
  2. Step 2: Convert to fraction form
    204,708.02/307,098.48 = 69,764.61/x
  3. Step 3: Cross multiply
    204,708.02x = 307,098.48 × 69,764.61
  4. Step 4: Simplify right side
    204,708.02x = 21,424,605,688.79
  5. Step 5: Solve for x
    x = 21,424,605,688.79/204,708.02
  6. Step 6: Final answer
    x = 104,659.34

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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.