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Finding the Fourth Proportional to 220,838.60, 331,310.76 and 71,092.89

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Solution

The fourth proportional to 220,838.60, 331,310.76 and 71,092.89 is: 106,656.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,838.60 : 331,310.76 = 71,092.89 : x
  2. Step 2: Convert to fraction form
    220,838.60/331,310.76 = 71,092.89/x
  3. Step 3: Cross multiply
    220,838.60x = 331,310.76 × 71,092.89
  4. Step 4: Simplify right side
    220,838.60x = 23,553,839,149.90
  5. Step 5: Solve for x
    x = 23,553,839,149.90/220,838.60
  6. Step 6: Final answer
    x = 106,656.35

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1.5x scale

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.