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Finding the Fourth Proportional to 108,609,815.70, 162,914,723.55 and 108,609,815.70

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Solution

The fourth proportional to 108,609,815.70, 162,914,723.55 and 108,609,815.70 is: 162,914,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,609,815.70 : 162,914,723.55 = 108,609,815.70 : x
  2. Step 2: Convert to fraction form
    108,609,815.70/162,914,723.55 = 108,609,815.70/x
  3. Step 3: Cross multiply
    108,609,815.70x = 162,914,723.55 × 108,609,815.70
  4. Step 4: Simplify right side
    108,609,815.70x = 17,694,138,099,581,952
  5. Step 5: Solve for x
    x = 17,694,138,099,581,952/108,609,815.70
  6. Step 6: Final answer
    x = 162,914,723.55

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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.