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Finding the Fourth Proportional to 64,716.97, 89,336.97 and 43,508.54

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Solution

The fourth proportional to 64,716.97, 89,336.97 and 43,508.54 is: 60,060.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,716.97 : 89,336.97 = 43,508.54 : x
  2. Step 2: Convert to fraction form
    64,716.97/89,336.97 = 43,508.54/x
  3. Step 3: Cross multiply
    64,716.97x = 89,336.97 × 43,508.54
  4. Step 4: Simplify right side
    64,716.97x = 3,886,920,686.04
  5. Step 5: Solve for x
    x = 3,886,920,686.04/64,716.97
  6. Step 6: Final answer
    x = 60,060.30

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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.