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Finding the Fourth Proportional to 64,694.20, 89,319 and 44,310.46

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Solution

The fourth proportional to 64,694.20, 89,319 and 44,310.46 is: 61,176.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,694.20 : 89,319 = 44,310.46 : x
  2. Step 2: Convert to fraction form
    64,694.20/89,319 = 44,310.46/x
  3. Step 3: Cross multiply
    64,694.20x = 89,319 × 44,310.46
  4. Step 4: Simplify right side
    64,694.20x = 3,957,765,976.74
  5. Step 5: Solve for x
    x = 3,957,765,976.74/64,694.20
  6. Step 6: Final answer
    x = 61,176.52

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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.