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Finding the Third Proportional to 198,510.75 and 432,712.13

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Solution

The third proportional to 198,510.75 and 432,712.13 is: 943,222.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,510.75 : 432,712.13 = 432,712.13 : x
  2. Step 2: Convert to fraction form
    198,510.75/432,712.13 = 432,712.13/x
  3. Step 3: Cross multiply
    198,510.75x = 432,712.13 × 432,712.13
  4. Step 4: Simplify right side
    198,510.75x = 187,239,783,122.02
  5. Step 5: Solve for x
    x = 187,239,783,122.02/198,510.75
  6. Step 6: Final answer
    x = 943,222.39

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.