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Finding the Third Proportional to 160,320 and 239,160

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Solution

The third proportional to 160,320 and 239,160 is: 356,770.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,320 : 239,160 = 239,160 : x
  2. Step 2: Convert to fraction form
    160,320/239,160 = 239,160/x
  3. Step 3: Cross multiply
    160,320x = 239,160 × 239,160
  4. Step 4: Simplify right side
    160,320x = 57,197,505,600
  5. Step 5: Solve for x
    x = 57,197,505,600/160,320
  6. Step 6: Final answer
    x = 356,770.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.