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Finding the Third Proportional to 43,655,380 and 72,754,580

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Solution

The third proportional to 43,655,380 and 72,754,580 is: 121,250,322.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,655,380 : 72,754,580 = 72,754,580 : x
  2. Step 2: Convert to fraction form
    43,655,380/72,754,580 = 72,754,580/x
  3. Step 3: Cross multiply
    43,655,380x = 72,754,580 × 72,754,580
  4. Step 4: Simplify right side
    43,655,380x = 5,293,228,910,976,400
  5. Step 5: Solve for x
    x = 5,293,228,910,976,400/43,655,380
  6. Step 6: Final answer
    x = 121,250,322.66

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.