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Finding the Third Proportional to 155,763 and 247,434.75

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Solution

The third proportional to 155,763 and 247,434.75 is: 393,058.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,763 : 247,434.75 = 247,434.75 : x
  2. Step 2: Convert to fraction form
    155,763/247,434.75 = 247,434.75/x
  3. Step 3: Cross multiply
    155,763x = 247,434.75 × 247,434.75
  4. Step 4: Simplify right side
    155,763x = 61,223,955,507.56
  5. Step 5: Solve for x
    x = 61,223,955,507.56/155,763
  6. Step 6: Final answer
    x = 393,058.40

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.