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Finding the Fourth Proportional to 228,606.35, 315,408.51 and 147,906.05

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Solution

The fourth proportional to 228,606.35, 315,408.51 and 147,906.05 is: 204,066.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,606.35 : 315,408.51 = 147,906.05 : x
  2. Step 2: Convert to fraction form
    228,606.35/315,408.51 = 147,906.05/x
  3. Step 3: Cross multiply
    228,606.35x = 315,408.51 × 147,906.05
  4. Step 4: Simplify right side
    228,606.35x = 46,650,825,273.44
  5. Step 5: Solve for x
    x = 46,650,825,273.44/228,606.35
  6. Step 6: Final answer
    x = 204,066.19

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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.