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Finding the Third Proportional to 356,121.75 and 550,681.88

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Solution

The third proportional to 356,121.75 and 550,681.88 is: 851,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,121.75 : 550,681.88 = 550,681.88 : x
  2. Step 2: Convert to fraction form
    356,121.75/550,681.88 = 550,681.88/x
  3. Step 3: Cross multiply
    356,121.75x = 550,681.88 × 550,681.88
  4. Step 4: Simplify right side
    356,121.75x = 303,250,527,453.52
  5. Step 5: Solve for x
    x = 303,250,527,453.52/356,121.75
  6. Step 6: Final answer
    x = 851,536.10

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.