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Finding the Fourth Proportional to 84,700,700.70, 126,811,902.60 and 84,700,700.70

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Solution

The fourth proportional to 84,700,700.70, 126,811,902.60 and 84,700,700.70 is: 126,811,902.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,700,700.70 : 126,811,902.60 = 84,700,700.70 : x
  2. Step 2: Convert to fraction form
    84,700,700.70/126,811,902.60 = 84,700,700.70/x
  3. Step 3: Cross multiply
    84,700,700.70x = 126,811,902.60 × 84,700,700.70
  4. Step 4: Simplify right side
    84,700,700.70x = 10,741,057,007,320,152
  5. Step 5: Solve for x
    x = 10,741,057,007,320,152/84,700,700.70
  6. Step 6: Final answer
    x = 126,811,902.60

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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.