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Finding the Fourth Proportional to 84,649.05, 126,999.90 and 34,733.21

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Solution

The fourth proportional to 84,649.05, 126,999.90 and 34,733.21 is: 52,110.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,649.05 : 126,999.90 = 34,733.21 : x
  2. Step 2: Convert to fraction form
    84,649.05/126,999.90 = 34,733.21/x
  3. Step 3: Cross multiply
    84,649.05x = 126,999.90 × 34,733.21
  4. Step 4: Simplify right side
    84,649.05x = 4,411,113,561.68
  5. Step 5: Solve for x
    x = 4,411,113,561.68/84,649.05
  6. Step 6: Final answer
    x = 52,110.61

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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.