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Finding the Fourth Proportional to 66,738,863.80, 100,108,295.70 and 59,180,591.80

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Solution

The fourth proportional to 66,738,863.80, 100,108,295.70 and 59,180,591.80 is: 88,770,887.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,738,863.80 : 100,108,295.70 = 59,180,591.80 : x
  2. Step 2: Convert to fraction form
    66,738,863.80/100,108,295.70 = 59,180,591.80/x
  3. Step 3: Cross multiply
    66,738,863.80x = 100,108,295.70 × 59,180,591.80
  4. Step 4: Simplify right side
    66,738,863.80x = 5,924,468,183,615,395
  5. Step 5: Solve for x
    x = 5,924,468,183,615,395/66,738,863.80
  6. Step 6: Final answer
    x = 88,770,887.70

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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.