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Finding the Fourth Proportional to 71,212.20, 106,818.30 and 59,634.60

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Solution

The fourth proportional to 71,212.20, 106,818.30 and 59,634.60 is: 89,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,212.20 : 106,818.30 = 59,634.60 : x
  2. Step 2: Convert to fraction form
    71,212.20/106,818.30 = 59,634.60/x
  3. Step 3: Cross multiply
    71,212.20x = 106,818.30 × 59,634.60
  4. Step 4: Simplify right side
    71,212.20x = 6,370,066,593.18
  5. Step 5: Solve for x
    x = 6,370,066,593.18/71,212.20
  6. Step 6: Final answer
    x = 89,451.90

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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.