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Finding the Fourth Proportional to 315,213.60, 472,561.20 and 167,469.60

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Solution

The fourth proportional to 315,213.60, 472,561.20 and 167,469.60 is: 251,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,213.60 : 472,561.20 = 167,469.60 : x
  2. Step 2: Convert to fraction form
    315,213.60/472,561.20 = 167,469.60/x
  3. Step 3: Cross multiply
    315,213.60x = 472,561.20 × 167,469.60
  4. Step 4: Simplify right side
    315,213.60x = 79,139,635,139.52
  5. Step 5: Solve for x
    x = 79,139,635,139.52/315,213.60
  6. Step 6: Final answer
    x = 251,066.69

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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.