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Finding the Fourth Proportional to 84,393.54, 126,478.53 and 44,865.54

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Solution

The fourth proportional to 84,393.54, 126,478.53 and 44,865.54 is: 67,238.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,393.54 : 126,478.53 = 44,865.54 : x
  2. Step 2: Convert to fraction form
    84,393.54/126,478.53 = 44,865.54/x
  3. Step 3: Cross multiply
    84,393.54x = 126,478.53 × 44,865.54
  4. Step 4: Simplify right side
    84,393.54x = 5,674,527,546.86
  5. Step 5: Solve for x
    x = 5,674,527,546.86/84,393.54
  6. Step 6: Final answer
    x = 67,238.89

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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.