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Finding the Third Proportional to 130,020.75 and 194,173.13

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Solution

The third proportional to 130,020.75 and 194,173.13 is: 289,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,020.75 : 194,173.13 = 194,173.13 : x
  2. Step 2: Convert to fraction form
    130,020.75/194,173.13 = 194,173.13/x
  3. Step 3: Cross multiply
    130,020.75x = 194,173.13 × 194,173.13
  4. Step 4: Simplify right side
    130,020.75x = 37,703,202,472.27
  5. Step 5: Solve for x
    x = 37,703,202,472.27/130,020.75
  6. Step 6: Final answer
    x = 289,978.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.