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Finding the Third Proportional to 91,518.94 and 138,405.75

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Solution

The third proportional to 91,518.94 and 138,405.75 is: 209,313.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,518.94 : 138,405.75 = 138,405.75 : x
  2. Step 2: Convert to fraction form
    91,518.94/138,405.75 = 138,405.75/x
  3. Step 3: Cross multiply
    91,518.94x = 138,405.75 × 138,405.75
  4. Step 4: Simplify right side
    91,518.94x = 19,156,151,633.06
  5. Step 5: Solve for x
    x = 19,156,151,633.06/91,518.94
  6. Step 6: Final answer
    x = 209,313.53

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.