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Finding the Third Proportional to 135,885,475.50 and 207,780,259.50

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Solution

The third proportional to 135,885,475.50 and 207,780,259.50 is: 317,713,398.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,885,475.50 : 207,780,259.50 = 207,780,259.50 : x
  2. Step 2: Convert to fraction form
    135,885,475.50/207,780,259.50 = 207,780,259.50/x
  3. Step 3: Cross multiply
    135,885,475.50x = 207,780,259.50 × 207,780,259.50
  4. Step 4: Simplify right side
    135,885,475.50x = 43,172,636,237,887,344
  5. Step 5: Solve for x
    x = 43,172,636,237,887,344/135,885,475.50
  6. Step 6: Final answer
    x = 317,713,398.57

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.