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Finding the Fourth Proportional to 66,529,390.80, 99,794,086.20 and 32,472,584.40

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Solution

The fourth proportional to 66,529,390.80, 99,794,086.20 and 32,472,584.40 is: 48,708,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,529,390.80 : 99,794,086.20 = 32,472,584.40 : x
  2. Step 2: Convert to fraction form
    66,529,390.80/99,794,086.20 = 32,472,584.40/x
  3. Step 3: Cross multiply
    66,529,390.80x = 99,794,086.20 × 32,472,584.40
  4. Step 4: Simplify right side
    66,529,390.80x = 3,240,571,886,750,375
  5. Step 5: Solve for x
    x = 3,240,571,886,750,375/66,529,390.80
  6. Step 6: Final answer
    x = 48,708,876.60

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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.