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Finding the Fourth Proportional to 47,764,387.80, 71,646,581.70 and 47,764,387.80

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Solution

The fourth proportional to 47,764,387.80, 71,646,581.70 and 47,764,387.80 is: 71,646,581.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,764,387.80 : 71,646,581.70 = 47,764,387.80 : x
  2. Step 2: Convert to fraction form
    47,764,387.80/71,646,581.70 = 47,764,387.80/x
  3. Step 3: Cross multiply
    47,764,387.80x = 71,646,581.70 × 47,764,387.80
  4. Step 4: Simplify right side
    47,764,387.80x = 3,422,155,112,863,183
  5. Step 5: Solve for x
    x = 3,422,155,112,863,183/47,764,387.80
  6. Step 6: Final answer
    x = 71,646,581.70

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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.