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Finding the Fourth Proportional to 71,069.60, 106,863.60 and 59,664.80

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Solution

The fourth proportional to 71,069.60, 106,863.60 and 59,664.80 is: 89,714.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,069.60 : 106,863.60 = 59,664.80 : x
  2. Step 2: Convert to fraction form
    71,069.60/106,863.60 = 59,664.80/x
  3. Step 3: Cross multiply
    71,069.60x = 106,863.60 × 59,664.80
  4. Step 4: Simplify right side
    71,069.60x = 6,375,995,321.28
  5. Step 5: Solve for x
    x = 6,375,995,321.28/71,069.60
  6. Step 6: Final answer
    x = 89,714.81

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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.