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Finding the Fourth Proportional to 217,210,327.60, 325,815,491.40 and 217,210,327.60

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Solution

The fourth proportional to 217,210,327.60, 325,815,491.40 and 217,210,327.60 is: 325,815,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,210,327.60 : 325,815,491.40 = 217,210,327.60 : x
  2. Step 2: Convert to fraction form
    217,210,327.60/325,815,491.40 = 217,210,327.60/x
  3. Step 3: Cross multiply
    217,210,327.60x = 325,815,491.40 × 217,210,327.60
  4. Step 4: Simplify right side
    217,210,327.60x = 70,770,489,624,148,976
  5. Step 5: Solve for x
    x = 70,770,489,624,148,976/217,210,327.60
  6. Step 6: Final answer
    x = 325,815,491.40

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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.