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Finding the Third Proportional to 53,639,134 and 80,458,742

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Solution

The third proportional to 53,639,134 and 80,458,742 is: 120,688,174.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,639,134 : 80,458,742 = 80,458,742 : x
  2. Step 2: Convert to fraction form
    53,639,134/80,458,742 = 80,458,742/x
  3. Step 3: Cross multiply
    53,639,134x = 80,458,742 × 80,458,742
  4. Step 4: Simplify right side
    53,639,134x = 6,473,609,164,222,564
  5. Step 5: Solve for x
    x = 6,473,609,164,222,564/53,639,134
  6. Step 6: Final answer
    x = 120,688,174.50

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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.