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Finding the Third Proportional to 155,306 and 336,000

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Solution

The third proportional to 155,306 and 336,000 is: 726,926.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,306 : 336,000 = 336,000 : x
  2. Step 2: Convert to fraction form
    155,306/336,000 = 336,000/x
  3. Step 3: Cross multiply
    155,306x = 336,000 × 336,000
  4. Step 4: Simplify right side
    155,306x = 112,896,000,000
  5. Step 5: Solve for x
    x = 112,896,000,000/155,306
  6. Step 6: Final answer
    x = 726,926.20

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.