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Finding the Third Proportional to 144,402 and 316,703

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Solution

The third proportional to 144,402 and 316,703 is: 694,594.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,402 : 316,703 = 316,703 : x
  2. Step 2: Convert to fraction form
    144,402/316,703 = 316,703/x
  3. Step 3: Cross multiply
    144,402x = 316,703 × 316,703
  4. Step 4: Simplify right side
    144,402x = 100,300,790,209
  5. Step 5: Solve for x
    x = 100,300,790,209/144,402
  6. Step 6: Final answer
    x = 694,594.19

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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.