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Finding the Fourth Proportional to 221,919.12, 332,881.11 and 64,148.94

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Solution

The fourth proportional to 221,919.12, 332,881.11 and 64,148.94 is: 96,224.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,919.12 : 332,881.11 = 64,148.94 : x
  2. Step 2: Convert to fraction form
    221,919.12/332,881.11 = 64,148.94/x
  3. Step 3: Cross multiply
    221,919.12x = 332,881.11 × 64,148.94
  4. Step 4: Simplify right side
    221,919.12x = 21,353,970,352.52
  5. Step 5: Solve for x
    x = 21,353,970,352.52/221,919.12
  6. Step 6: Final answer
    x = 96,224.11

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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.