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Finding the Third Proportional to 221,931 and 314,025.75

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Solution

The third proportional to 221,931 and 314,025.75 is: 444,337.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,931 : 314,025.75 = 314,025.75 : x
  2. Step 2: Convert to fraction form
    221,931/314,025.75 = 314,025.75/x
  3. Step 3: Cross multiply
    221,931x = 314,025.75 × 314,025.75
  4. Step 4: Simplify right side
    221,931x = 98,612,171,663.06
  5. Step 5: Solve for x
    x = 98,612,171,663.06/221,931
  6. Step 6: Final answer
    x = 444,337.08

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.