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Finding the Fourth Proportional to 236,103.60, 354,155.40 and 156,961.20

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Solution

The fourth proportional to 236,103.60, 354,155.40 and 156,961.20 is: 235,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,103.60 : 354,155.40 = 156,961.20 : x
  2. Step 2: Convert to fraction form
    236,103.60/354,155.40 = 156,961.20/x
  3. Step 3: Cross multiply
    236,103.60x = 354,155.40 × 156,961.20
  4. Step 4: Simplify right side
    236,103.60x = 55,588,656,570.48
  5. Step 5: Solve for x
    x = 55,588,656,570.48/236,103.60
  6. Step 6: Final answer
    x = 235,441.80

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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.