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Finding the Fourth Proportional to 230,794.44, 318,483.38 and 128,826.48

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Solution

The fourth proportional to 230,794.44, 318,483.38 and 128,826.48 is: 177,773.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,794.44 : 318,483.38 = 128,826.48 : x
  2. Step 2: Convert to fraction form
    230,794.44/318,483.38 = 128,826.48/x
  3. Step 3: Cross multiply
    230,794.44x = 318,483.38 × 128,826.48
  4. Step 4: Simplify right side
    230,794.44x = 41,029,092,783.90
  5. Step 5: Solve for x
    x = 41,029,092,783.90/230,794.44
  6. Step 6: Final answer
    x = 177,773.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.