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Finding the Third Proportional to 72,894.50 and 119,031

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Solution

The third proportional to 72,894.50 and 119,031 is: 194,368.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,894.50 : 119,031 = 119,031 : x
  2. Step 2: Convert to fraction form
    72,894.50/119,031 = 119,031/x
  3. Step 3: Cross multiply
    72,894.50x = 119,031 × 119,031
  4. Step 4: Simplify right side
    72,894.50x = 14,168,378,961
  5. Step 5: Solve for x
    x = 14,168,378,961/72,894.50
  6. Step 6: Final answer
    x = 194,368.29

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.