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Finding the Fourth Proportional to 48,505,212.80, 72,757,819.20 and 48,505,212.80

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Solution

The fourth proportional to 48,505,212.80, 72,757,819.20 and 48,505,212.80 is: 72,757,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,505,212.80 : 72,757,819.20 = 48,505,212.80 : x
  2. Step 2: Convert to fraction form
    48,505,212.80/72,757,819.20 = 48,505,212.80/x
  3. Step 3: Cross multiply
    48,505,212.80x = 72,757,819.20 × 48,505,212.80
  4. Step 4: Simplify right side
    48,505,212.80x = 3,529,133,503,159,925.50
  5. Step 5: Solve for x
    x = 3,529,133,503,159,925.50/48,505,212.80
  6. Step 6: Final answer
    x = 72,757,819.20

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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.