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Finding the Third Proportional to 64,840,999.50 and 100,291,488.75

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Solution

The third proportional to 64,840,999.50 and 100,291,488.75 is: 155,123,807.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,840,999.50 : 100,291,488.75 = 100,291,488.75 : x
  2. Step 2: Convert to fraction form
    64,840,999.50/100,291,488.75 = 100,291,488.75/x
  3. Step 3: Cross multiply
    64,840,999.50x = 100,291,488.75 × 100,291,488.75
  4. Step 4: Simplify right side
    64,840,999.50x = 10,058,382,715,691,376
  5. Step 5: Solve for x
    x = 10,058,382,715,691,376/64,840,999.50
  6. Step 6: Final answer
    x = 155,123,807.36

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.