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Finding the Third Proportional to 103,726.50 and 211,261

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Solution

The third proportional to 103,726.50 and 211,261 is: 430,277.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,726.50 : 211,261 = 211,261 : x
  2. Step 2: Convert to fraction form
    103,726.50/211,261 = 211,261/x
  3. Step 3: Cross multiply
    103,726.50x = 211,261 × 211,261
  4. Step 4: Simplify right side
    103,726.50x = 44,631,210,121
  5. Step 5: Solve for x
    x = 44,631,210,121/103,726.50
  6. Step 6: Final answer
    x = 430,277.80

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.