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Finding the Third Proportional to 155,990.81 and 336,889.13

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Solution

The third proportional to 155,990.81 and 336,889.13 is: 727,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,990.81 : 336,889.13 = 336,889.13 : x
  2. Step 2: Convert to fraction form
    155,990.81/336,889.13 = 336,889.13/x
  3. Step 3: Cross multiply
    155,990.81x = 336,889.13 × 336,889.13
  4. Step 4: Simplify right side
    155,990.81x = 113,494,282,543.27
  5. Step 5: Solve for x
    x = 113,494,282,543.27/155,990.81
  6. Step 6: Final answer
    x = 727,570.30

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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.