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Finding the Fourth Proportional to 70,311,930.60, 105,467,895.90 and 70,311,930.60

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Solution

The fourth proportional to 70,311,930.60, 105,467,895.90 and 70,311,930.60 is: 105,467,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,311,930.60 : 105,467,895.90 = 70,311,930.60 : x
  2. Step 2: Convert to fraction form
    70,311,930.60/105,467,895.90 = 70,311,930.60/x
  3. Step 3: Cross multiply
    70,311,930.60x = 105,467,895.90 × 70,311,930.60
  4. Step 4: Simplify right side
    70,311,930.60x = 7,415,651,377,048,824
  5. Step 5: Solve for x
    x = 7,415,651,377,048,824/70,311,930.60
  6. Step 6: Final answer
    x = 105,467,895.90

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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.