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Finding the Fourth Proportional to 90,334.64, 135,491.48 and 23,779.97

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Solution

The fourth proportional to 90,334.64, 135,491.48 and 23,779.97 is: 35,667.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,334.64 : 135,491.48 = 23,779.97 : x
  2. Step 2: Convert to fraction form
    90,334.64/135,491.48 = 23,779.97/x
  3. Step 3: Cross multiply
    90,334.64x = 135,491.48 × 23,779.97
  4. Step 4: Simplify right side
    90,334.64x = 3,221,983,073.79
  5. Step 5: Solve for x
    x = 3,221,983,073.79/90,334.64
  6. Step 6: Final answer
    x = 35,667.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.