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Finding the Fourth Proportional to 60,906.96, 84,161.16 and 47,512.08

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Solution

The fourth proportional to 60,906.96, 84,161.16 and 47,512.08 is: 65,652.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,906.96 : 84,161.16 = 47,512.08 : x
  2. Step 2: Convert to fraction form
    60,906.96/84,161.16 = 47,512.08/x
  3. Step 3: Cross multiply
    60,906.96x = 84,161.16 × 47,512.08
  4. Step 4: Simplify right side
    60,906.96x = 3,998,671,766.81
  5. Step 5: Solve for x
    x = 3,998,671,766.81/60,906.96
  6. Step 6: Final answer
    x = 65,652.13

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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.