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Finding the Third Proportional to 53,639,126 and 80,458,730

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Solution

The third proportional to 53,639,126 and 80,458,730 is: 120,688,156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,639,126 : 80,458,730 = 80,458,730 : x
  2. Step 2: Convert to fraction form
    53,639,126/80,458,730 = 80,458,730/x
  3. Step 3: Cross multiply
    53,639,126x = 80,458,730 × 80,458,730
  4. Step 4: Simplify right side
    53,639,126x = 6,473,607,233,212,900
  5. Step 5: Solve for x
    x = 6,473,607,233,212,900/53,639,126
  6. Step 6: Final answer
    x = 120,688,156.50

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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.