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Finding the Fourth Proportional to 195,309.42, 292,987.56 and 68,923.56

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Solution

The fourth proportional to 195,309.42, 292,987.56 and 68,923.56 is: 103,393.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,309.42 : 292,987.56 = 68,923.56 : x
  2. Step 2: Convert to fraction form
    195,309.42/292,987.56 = 68,923.56/x
  3. Step 3: Cross multiply
    195,309.42x = 292,987.56 × 68,923.56
  4. Step 4: Simplify right side
    195,309.42x = 20,193,745,670.91
  5. Step 5: Solve for x
    x = 20,193,745,670.91/195,309.42
  6. Step 6: Final answer
    x = 103,393.61

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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.