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Finding the Third Proportional to 100,807.50 and 148,913

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Solution

The third proportional to 100,807.50 and 148,913 is: 219,974.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,807.50 : 148,913 = 148,913 : x
  2. Step 2: Convert to fraction form
    100,807.50/148,913 = 148,913/x
  3. Step 3: Cross multiply
    100,807.50x = 148,913 × 148,913
  4. Step 4: Simplify right side
    100,807.50x = 22,175,081,569
  5. Step 5: Solve for x
    x = 22,175,081,569/100,807.50
  6. Step 6: Final answer
    x = 219,974.52

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.