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Finding the Fourth Proportional to 64,594.28, 89,222.78 and 49,394.63

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Solution

The fourth proportional to 64,594.28, 89,222.78 and 49,394.63 is: 68,227.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,594.28 : 89,222.78 = 49,394.63 : x
  2. Step 2: Convert to fraction form
    64,594.28/89,222.78 = 49,394.63/x
  3. Step 3: Cross multiply
    64,594.28x = 89,222.78 × 49,394.63
  4. Step 4: Simplify right side
    64,594.28x = 4,407,126,205.67
  5. Step 5: Solve for x
    x = 4,407,126,205.67/64,594.28
  6. Step 6: Final answer
    x = 68,227.81

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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.