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Finding the Fourth Proportional to 239,847.54, 359,738.47 and 71,393.86

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Solution

The fourth proportional to 239,847.54, 359,738.47 and 71,393.86 is: 107,081.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,847.54 : 359,738.47 = 71,393.86 : x
  2. Step 2: Convert to fraction form
    239,847.54/359,738.47 = 71,393.86/x
  3. Step 3: Cross multiply
    239,847.54x = 359,738.47 × 71,393.86
  4. Step 4: Simplify right side
    239,847.54x = 25,683,117,963.79
  5. Step 5: Solve for x
    x = 25,683,117,963.79/239,847.54
  6. Step 6: Final answer
    x = 107,081.01

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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.