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Finding the Fourth Proportional to 86,431.88, 119,276.00 and 46,687.88

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Solution

The fourth proportional to 86,431.88, 119,276.00 and 46,687.88 is: 64,429.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,431.88 : 119,276.00 = 46,687.88 : x
  2. Step 2: Convert to fraction form
    86,431.88/119,276.00 = 46,687.88/x
  3. Step 3: Cross multiply
    86,431.88x = 119,276.00 × 46,687.88
  4. Step 4: Simplify right side
    86,431.88x = 5,568,742,745.06
  5. Step 5: Solve for x
    x = 5,568,742,745.06/86,431.88
  6. Step 6: Final answer
    x = 64,429.27

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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.