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Finding the Third Proportional to 79,434 and 121,687.88

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Solution

The third proportional to 79,434 and 121,687.88 is: 186,418.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,434 : 121,687.88 = 121,687.88 : x
  2. Step 2: Convert to fraction form
    79,434/121,687.88 = 121,687.88/x
  3. Step 3: Cross multiply
    79,434x = 121,687.88 × 121,687.88
  4. Step 4: Simplify right side
    79,434x = 14,807,938,922.02
  5. Step 5: Solve for x
    x = 14,807,938,922.02/79,434
  6. Step 6: Final answer
    x = 186,418.14

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.