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Finding the Fourth Proportional to 81,476.35, 122,209.97 and 22,307.67

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Solution

The fourth proportional to 81,476.35, 122,209.97 and 22,307.67 is: 33,460.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,476.35 : 122,209.97 = 22,307.67 : x
  2. Step 2: Convert to fraction form
    81,476.35/122,209.97 = 22,307.67/x
  3. Step 3: Cross multiply
    81,476.35x = 122,209.97 × 22,307.67
  4. Step 4: Simplify right side
    81,476.35x = 2,726,219,569.93
  5. Step 5: Solve for x
    x = 2,726,219,569.93/81,476.35
  6. Step 6: Final answer
    x = 33,460.26

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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.