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Finding the Third Proportional to 91,651.50 and 191,681.44

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Solution

The third proportional to 91,651.50 and 191,681.44 is: 400,885.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,651.50 : 191,681.44 = 191,681.44 : x
  2. Step 2: Convert to fraction form
    91,651.50/191,681.44 = 191,681.44/x
  3. Step 3: Cross multiply
    91,651.50x = 191,681.44 × 191,681.44
  4. Step 4: Simplify right side
    91,651.50x = 36,741,773,482.07
  5. Step 5: Solve for x
    x = 36,741,773,482.07/91,651.50
  6. Step 6: Final answer
    x = 400,885.68

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.