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Finding the Fourth Proportional to 195,046.81, 292,593.66 and 68,660.81

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Solution

The fourth proportional to 195,046.81, 292,593.66 and 68,660.81 is: 102,999.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,046.81 : 292,593.66 = 68,660.81 : x
  2. Step 2: Convert to fraction form
    195,046.81/292,593.66 = 68,660.81/x
  3. Step 3: Cross multiply
    195,046.81x = 292,593.66 × 68,660.81
  4. Step 4: Simplify right side
    195,046.81x = 20,089,717,696.46
  5. Step 5: Solve for x
    x = 20,089,717,696.46/195,046.81
  6. Step 6: Final answer
    x = 102,999.47

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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.