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Finding the Fourth Proportional to 194,685.60, 291,567.60 and 132,016.80

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Solution

The fourth proportional to 194,685.60, 291,567.60 and 132,016.80 is: 197,712.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,685.60 : 291,567.60 = 132,016.80 : x
  2. Step 2: Convert to fraction form
    194,685.60/291,567.60 = 132,016.80/x
  3. Step 3: Cross multiply
    194,685.60x = 291,567.60 × 132,016.80
  4. Step 4: Simplify right side
    194,685.60x = 38,491,821,535.68
  5. Step 5: Solve for x
    x = 38,491,821,535.68/194,685.60
  6. Step 6: Final answer
    x = 197,712.73

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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.