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Finding the Fourth Proportional to 136,546.80, 204,820.20 and 115,551.60

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Solution

The fourth proportional to 136,546.80, 204,820.20 and 115,551.60 is: 173,327.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,546.80 : 204,820.20 = 115,551.60 : x
  2. Step 2: Convert to fraction form
    136,546.80/204,820.20 = 115,551.60/x
  3. Step 3: Cross multiply
    136,546.80x = 204,820.20 × 115,551.60
  4. Step 4: Simplify right side
    136,546.80x = 23,667,301,822.32
  5. Step 5: Solve for x
    x = 23,667,301,822.32/136,546.80
  6. Step 6: Final answer
    x = 173,327.40

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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.