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Finding the Third Proportional to 201,929.25 and 312,633

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Solution

The third proportional to 201,929.25 and 312,633 is: 484,027.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,929.25 : 312,633 = 312,633 : x
  2. Step 2: Convert to fraction form
    201,929.25/312,633 = 312,633/x
  3. Step 3: Cross multiply
    201,929.25x = 312,633 × 312,633
  4. Step 4: Simplify right side
    201,929.25x = 97,739,392,689
  5. Step 5: Solve for x
    x = 97,739,392,689/201,929.25
  6. Step 6: Final answer
    x = 484,027.91

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.