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Finding the Third Proportional to 121,523.63 and 189,166.50

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Solution

The third proportional to 121,523.63 and 189,166.50 is: 294,460.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,523.63 : 189,166.50 = 189,166.50 : x
  2. Step 2: Convert to fraction form
    121,523.63/189,166.50 = 189,166.50/x
  3. Step 3: Cross multiply
    121,523.63x = 189,166.50 × 189,166.50
  4. Step 4: Simplify right side
    121,523.63x = 35,783,964,722.25
  5. Step 5: Solve for x
    x = 35,783,964,722.25/121,523.63
  6. Step 6: Final answer
    x = 294,460.97

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.