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Finding the Fourth Proportional to 57,108.32, 78,845.22 and 36,698.66

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Solution

The fourth proportional to 57,108.32, 78,845.22 and 36,698.66 is: 50,667.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,108.32 : 78,845.22 = 36,698.66 : x
  2. Step 2: Convert to fraction form
    57,108.32/78,845.22 = 36,698.66/x
  3. Step 3: Cross multiply
    57,108.32x = 78,845.22 × 36,698.66
  4. Step 4: Simplify right side
    57,108.32x = 2,893,513,343.69
  5. Step 5: Solve for x
    x = 2,893,513,343.69/57,108.32
  6. Step 6: Final answer
    x = 50,667.11

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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.