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Finding the Fourth Proportional to 195,410.80, 293,116.20 and 121,682.80

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Solution

The fourth proportional to 195,410.80, 293,116.20 and 121,682.80 is: 182,524.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,410.80 : 293,116.20 = 121,682.80 : x
  2. Step 2: Convert to fraction form
    195,410.80/293,116.20 = 121,682.80/x
  3. Step 3: Cross multiply
    195,410.80x = 293,116.20 × 121,682.80
  4. Step 4: Simplify right side
    195,410.80x = 35,667,199,941.36
  5. Step 5: Solve for x
    x = 35,667,199,941.36/195,410.80
  6. Step 6: Final answer
    x = 182,524.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.