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Finding the Fourth Proportional to 195,860.80, 293,791.20 and 178,657.60

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Solution

The fourth proportional to 195,860.80, 293,791.20 and 178,657.60 is: 267,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,860.80 : 293,791.20 = 178,657.60 : x
  2. Step 2: Convert to fraction form
    195,860.80/293,791.20 = 178,657.60/x
  3. Step 3: Cross multiply
    195,860.80x = 293,791.20 × 178,657.60
  4. Step 4: Simplify right side
    195,860.80x = 52,488,030,693.12
  5. Step 5: Solve for x
    x = 52,488,030,693.12/195,860.80
  6. Step 6: Final answer
    x = 267,986.40

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1.5x scale

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.