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Finding the Third Proportional to 54,336,140 and 81,288,790

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Solution

The third proportional to 54,336,140 and 81,288,790 is: 121,610,909.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,336,140 : 81,288,790 = 81,288,790 : x
  2. Step 2: Convert to fraction form
    54,336,140/81,288,790 = 81,288,790/x
  3. Step 3: Cross multiply
    54,336,140x = 81,288,790 × 81,288,790
  4. Step 4: Simplify right side
    54,336,140x = 6,607,867,379,664,100
  5. Step 5: Solve for x
    x = 6,607,867,379,664,100/54,336,140
  6. Step 6: Final answer
    x = 121,610,909.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.