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Finding the Fourth Proportional to 120,275.88, 165,789.50 and 94,741.79

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Solution

The fourth proportional to 120,275.88, 165,789.50 and 94,741.79 is: 130,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,275.88 : 165,789.50 = 94,741.79 : x
  2. Step 2: Convert to fraction form
    120,275.88/165,789.50 = 94,741.79/x
  3. Step 3: Cross multiply
    120,275.88x = 165,789.50 × 94,741.79
  4. Step 4: Simplify right side
    120,275.88x = 15,707,193,993.21
  5. Step 5: Solve for x
    x = 15,707,193,993.21/120,275.88
  6. Step 6: Final answer
    x = 130,593.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.