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Finding the Third Proportional to 191,344.50 and 417,663

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Solution

The third proportional to 191,344.50 and 417,663 is: 911,666.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,344.50 : 417,663 = 417,663 : x
  2. Step 2: Convert to fraction form
    191,344.50/417,663 = 417,663/x
  3. Step 3: Cross multiply
    191,344.50x = 417,663 × 417,663
  4. Step 4: Simplify right side
    191,344.50x = 174,442,381,569
  5. Step 5: Solve for x
    x = 174,442,381,569/191,344.50
  6. Step 6: Final answer
    x = 911,666.56

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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.