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Finding the Third Proportional to 156,974 and 336,088

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Solution

The third proportional to 156,974 and 336,088 is: 719,578.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,974 : 336,088 = 336,088 : x
  2. Step 2: Convert to fraction form
    156,974/336,088 = 336,088/x
  3. Step 3: Cross multiply
    156,974x = 336,088 × 336,088
  4. Step 4: Simplify right side
    156,974x = 112,955,143,744
  5. Step 5: Solve for x
    x = 112,955,143,744/156,974
  6. Step 6: Final answer
    x = 719,578.68

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.