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Finding the Fourth Proportional to 147,280.80, 206,469.60 and 147,280.80

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Solution

The fourth proportional to 147,280.80, 206,469.60 and 147,280.80 is: 206,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,280.80 : 206,469.60 = 147,280.80 : x
  2. Step 2: Convert to fraction form
    147,280.80/206,469.60 = 147,280.80/x
  3. Step 3: Cross multiply
    147,280.80x = 206,469.60 × 147,280.80
  4. Step 4: Simplify right side
    147,280.80x = 30,409,007,863.68
  5. Step 5: Solve for x
    x = 30,409,007,863.68/147,280.80
  6. Step 6: Final answer
    x = 206,469.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.