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Finding the Fourth Proportional to 132,958.80, 199,438.20 and 131,792.40

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Solution

The fourth proportional to 132,958.80, 199,438.20 and 131,792.40 is: 197,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,958.80 : 199,438.20 = 131,792.40 : x
  2. Step 2: Convert to fraction form
    132,958.80/199,438.20 = 131,792.40/x
  3. Step 3: Cross multiply
    132,958.80x = 199,438.20 × 131,792.40
  4. Step 4: Simplify right side
    132,958.80x = 26,284,439,029.68
  5. Step 5: Solve for x
    x = 26,284,439,029.68/132,958.80
  6. Step 6: Final answer
    x = 197,688.60

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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.