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Finding the Fourth Proportional to 86,252.64, 119,027.70 and 48,012

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Solution

The fourth proportional to 86,252.64, 119,027.70 and 48,012 is: 66,256.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,252.64 : 119,027.70 = 48,012 : x
  2. Step 2: Convert to fraction form
    86,252.64/119,027.70 = 48,012/x
  3. Step 3: Cross multiply
    86,252.64x = 119,027.70 × 48,012
  4. Step 4: Simplify right side
    86,252.64x = 5,714,757,932.40
  5. Step 5: Solve for x
    x = 5,714,757,932.40/86,252.64
  6. Step 6: Final answer
    x = 66,256.03

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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.