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Finding the Fourth Proportional to 143,694,455.40, 215,541,683.10 and 143,694,455.40

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Solution

The fourth proportional to 143,694,455.40, 215,541,683.10 and 143,694,455.40 is: 215,541,683.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,694,455.40 : 215,541,683.10 = 143,694,455.40 : x
  2. Step 2: Convert to fraction form
    143,694,455.40/215,541,683.10 = 143,694,455.40/x
  3. Step 3: Cross multiply
    143,694,455.40x = 215,541,683.10 × 143,694,455.40
  4. Step 4: Simplify right side
    143,694,455.40x = 30,972,144,769,053,884
  5. Step 5: Solve for x
    x = 30,972,144,769,053,884/143,694,455.40
  6. Step 6: Final answer
    x = 215,541,683.10

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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.