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Finding the Fourth Proportional to 122,379.71, 183,536.15 and 33,612.11

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Solution

The fourth proportional to 122,379.71, 183,536.15 and 33,612.11 is: 50,408.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,379.71 : 183,536.15 = 33,612.11 : x
  2. Step 2: Convert to fraction form
    122,379.71/183,536.15 = 33,612.11/x
  3. Step 3: Cross multiply
    122,379.71x = 183,536.15 × 33,612.11
  4. Step 4: Simplify right side
    122,379.71x = 6,169,037,637.59
  5. Step 5: Solve for x
    x = 6,169,037,637.59/122,379.71
  6. Step 6: Final answer
    x = 50,408.99

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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.