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Finding the Fourth Proportional to 169,840.80, 255,033.20 and 135,069.60

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Solution

The fourth proportional to 169,840.80, 255,033.20 and 135,069.60 is: 202,820.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,840.80 : 255,033.20 = 135,069.60 : x
  2. Step 2: Convert to fraction form
    169,840.80/255,033.20 = 135,069.60/x
  3. Step 3: Cross multiply
    169,840.80x = 255,033.20 × 135,069.60
  4. Step 4: Simplify right side
    169,840.80x = 34,447,232,310.72
  5. Step 5: Solve for x
    x = 34,447,232,310.72/169,840.80
  6. Step 6: Final answer
    x = 202,820.71

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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.