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Finding the Fourth Proportional to 172,847.20, 259,270.80 and 162,349.60

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Solution

The fourth proportional to 172,847.20, 259,270.80 and 162,349.60 is: 243,524.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,847.20 : 259,270.80 = 162,349.60 : x
  2. Step 2: Convert to fraction form
    172,847.20/259,270.80 = 162,349.60/x
  3. Step 3: Cross multiply
    172,847.20x = 259,270.80 × 162,349.60
  4. Step 4: Simplify right side
    172,847.20x = 42,092,510,671.68
  5. Step 5: Solve for x
    x = 42,092,510,671.68/172,847.20
  6. Step 6: Final answer
    x = 243,524.40

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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.