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Finding the Fourth Proportional to 228,731.20, 343,485.60 and 169,633.60

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Solution

The fourth proportional to 228,731.20, 343,485.60 and 169,633.60 is: 254,738.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,731.20 : 343,485.60 = 169,633.60 : x
  2. Step 2: Convert to fraction form
    228,731.20/343,485.60 = 169,633.60/x
  3. Step 3: Cross multiply
    228,731.20x = 343,485.60 × 169,633.60
  4. Step 4: Simplify right side
    228,731.20x = 58,266,698,876.16
  5. Step 5: Solve for x
    x = 58,266,698,876.16/228,731.20
  6. Step 6: Final answer
    x = 254,738.75

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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.