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Finding the Third Proportional to 90,031.50 and 195,453

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Solution

The third proportional to 90,031.50 and 195,453 is: 424,316.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,031.50 : 195,453 = 195,453 : x
  2. Step 2: Convert to fraction form
    90,031.50/195,453 = 195,453/x
  3. Step 3: Cross multiply
    90,031.50x = 195,453 × 195,453
  4. Step 4: Simplify right side
    90,031.50x = 38,201,875,209
  5. Step 5: Solve for x
    x = 38,201,875,209/90,031.50
  6. Step 6: Final answer
    x = 424,316.77

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.