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Finding the Fourth Proportional to 71,266.56, 106,917.12 and 21,346.56

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Solution

The fourth proportional to 71,266.56, 106,917.12 and 21,346.56 is: 32,025.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,266.56 : 106,917.12 = 21,346.56 : x
  2. Step 2: Convert to fraction form
    71,266.56/106,917.12 = 21,346.56/x
  3. Step 3: Cross multiply
    71,266.56x = 106,917.12 × 21,346.56
  4. Step 4: Simplify right side
    71,266.56x = 2,282,312,717.11
  5. Step 5: Solve for x
    x = 2,282,312,717.11/71,266.56
  6. Step 6: Final answer
    x = 32,025.02

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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.