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Finding the Third Proportional to 91,380.66 and 136,312.88

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Solution

The third proportional to 91,380.66 and 136,312.88 is: 203,338.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,380.66 : 136,312.88 = 136,312.88 : x
  2. Step 2: Convert to fraction form
    91,380.66/136,312.88 = 136,312.88/x
  3. Step 3: Cross multiply
    91,380.66x = 136,312.88 × 136,312.88
  4. Step 4: Simplify right side
    91,380.66x = 18,581,199,890.77
  5. Step 5: Solve for x
    x = 18,581,199,890.77/91,380.66
  6. Step 6: Final answer
    x = 203,338.44

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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.