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Finding the Fourth Proportional to 247,282.57, 341,245.92 and 139,848.58

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Solution

The fourth proportional to 247,282.57, 341,245.92 and 139,848.58 is: 192,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,282.57 : 341,245.92 = 139,848.58 : x
  2. Step 2: Convert to fraction form
    247,282.57/341,245.92 = 139,848.58/x
  3. Step 3: Cross multiply
    247,282.57x = 341,245.92 × 139,848.58
  4. Step 4: Simplify right side
    247,282.57x = 47,722,757,342.79
  5. Step 5: Solve for x
    x = 47,722,757,342.79/247,282.57
  6. Step 6: Final answer
    x = 192,988.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.