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Finding the Third Proportional to 133,031.50 and 195,657

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Solution

The third proportional to 133,031.50 and 195,657 is: 287,763.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,031.50 : 195,657 = 195,657 : x
  2. Step 2: Convert to fraction form
    133,031.50/195,657 = 195,657/x
  3. Step 3: Cross multiply
    133,031.50x = 195,657 × 195,657
  4. Step 4: Simplify right side
    133,031.50x = 38,281,661,649
  5. Step 5: Solve for x
    x = 38,281,661,649/133,031.50
  6. Step 6: Final answer
    x = 287,763.89

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.