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Finding the Fourth Proportional to 103,512.60, 155,268.90 and 96,951.60

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Solution

The fourth proportional to 103,512.60, 155,268.90 and 96,951.60 is: 145,427.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,512.60 : 155,268.90 = 96,951.60 : x
  2. Step 2: Convert to fraction form
    103,512.60/155,268.90 = 96,951.60/x
  3. Step 3: Cross multiply
    103,512.60x = 155,268.90 × 96,951.60
  4. Step 4: Simplify right side
    103,512.60x = 15,053,568,285.24
  5. Step 5: Solve for x
    x = 15,053,568,285.24/103,512.60
  6. Step 6: Final answer
    x = 145,427.40

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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.