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Finding the Fourth Proportional to 73,956.56, 110,918.52 and 21,354.60

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Solution

The fourth proportional to 73,956.56, 110,918.52 and 21,354.60 is: 32,027.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,956.56 : 110,918.52 = 21,354.60 : x
  2. Step 2: Convert to fraction form
    73,956.56/110,918.52 = 21,354.60/x
  3. Step 3: Cross multiply
    73,956.56x = 110,918.52 × 21,354.60
  4. Step 4: Simplify right side
    73,956.56x = 2,368,620,627.19
  5. Step 5: Solve for x
    x = 2,368,620,627.19/73,956.56
  6. Step 6: Final answer
    x = 32,027.19

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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.