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Finding the Third Proportional to 231,702 and 358,193.25

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Solution

The third proportional to 231,702 and 358,193.25 is: 553,738.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,702 : 358,193.25 = 358,193.25 : x
  2. Step 2: Convert to fraction form
    231,702/358,193.25 = 358,193.25/x
  3. Step 3: Cross multiply
    231,702x = 358,193.25 × 358,193.25
  4. Step 4: Simplify right side
    231,702x = 128,302,404,345.56
  5. Step 5: Solve for x
    x = 128,302,404,345.56/231,702
  6. Step 6: Final answer
    x = 553,738.87

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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.