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Finding the Third Proportional to 187,821.50 and 417,637

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Solution

The third proportional to 187,821.50 and 417,637 is: 928,651.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,821.50 : 417,637 = 417,637 : x
  2. Step 2: Convert to fraction form
    187,821.50/417,637 = 417,637/x
  3. Step 3: Cross multiply
    187,821.50x = 417,637 × 417,637
  4. Step 4: Simplify right side
    187,821.50x = 174,420,663,769
  5. Step 5: Solve for x
    x = 174,420,663,769/187,821.50
  6. Step 6: Final answer
    x = 928,651.21

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.