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Finding the Fourth Proportional to 86,568, 119,466.72 and 53,027.52

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Solution

The fourth proportional to 86,568, 119,466.72 and 53,027.52 is: 73,179.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,568 : 119,466.72 = 53,027.52 : x
  2. Step 2: Convert to fraction form
    86,568/119,466.72 = 53,027.52/x
  3. Step 3: Cross multiply
    86,568x = 119,466.72 × 53,027.52
  4. Step 4: Simplify right side
    86,568x = 6,335,023,884.13
  5. Step 5: Solve for x
    x = 6,335,023,884.13/86,568
  6. Step 6: Final answer
    x = 73,179.74

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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.