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Finding the Third Proportional to 218,349.75 and 333,355.13

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Solution

The third proportional to 218,349.75 and 333,355.13 is: 508,934.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,349.75 : 333,355.13 = 333,355.13 : x
  2. Step 2: Convert to fraction form
    218,349.75/333,355.13 = 333,355.13/x
  3. Step 3: Cross multiply
    218,349.75x = 333,355.13 × 333,355.13
  4. Step 4: Simplify right side
    218,349.75x = 111,125,639,363.77
  5. Step 5: Solve for x
    x = 111,125,639,363.77/218,349.75
  6. Step 6: Final answer
    x = 508,934.13

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.