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Finding the Fourth Proportional to 247,806.80, 341,971.56 and 134,630.48

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Solution

The fourth proportional to 247,806.80, 341,971.56 and 134,630.48 is: 185,789.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,806.80 : 341,971.56 = 134,630.48 : x
  2. Step 2: Convert to fraction form
    247,806.80/341,971.56 = 134,630.48/x
  3. Step 3: Cross multiply
    247,806.80x = 341,971.56 × 134,630.48
  4. Step 4: Simplify right side
    247,806.80x = 46,039,795,269.15
  5. Step 5: Solve for x
    x = 46,039,795,269.15/247,806.80
  6. Step 6: Final answer
    x = 185,789.07

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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.