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Finding the Third Proportional to 99,203.50 and 149,031

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Solution

The third proportional to 99,203.50 and 149,031 is: 223,885.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,203.50 : 149,031 = 149,031 : x
  2. Step 2: Convert to fraction form
    99,203.50/149,031 = 149,031/x
  3. Step 3: Cross multiply
    99,203.50x = 149,031 × 149,031
  4. Step 4: Simplify right side
    99,203.50x = 22,210,238,961
  5. Step 5: Solve for x
    x = 22,210,238,961/99,203.50
  6. Step 6: Final answer
    x = 223,885.64

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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.