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Finding the Third Proportional to 205,931.25 and 451,228.50

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Solution

The third proportional to 205,931.25 and 451,228.50 is: 988,714.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,931.25 : 451,228.50 = 451,228.50 : x
  2. Step 2: Convert to fraction form
    205,931.25/451,228.50 = 451,228.50/x
  3. Step 3: Cross multiply
    205,931.25x = 451,228.50 × 451,228.50
  4. Step 4: Simplify right side
    205,931.25x = 203,607,159,212.25
  5. Step 5: Solve for x
    x = 203,607,159,212.25/205,931.25
  6. Step 6: Final answer
    x = 988,714.24

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.