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Finding the Fourth Proportional to 79,264.94, 118,910.54 and 39,285.81

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Solution

The fourth proportional to 79,264.94, 118,910.54 and 39,285.81 is: 58,935.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,264.94 : 118,910.54 = 39,285.81 : x
  2. Step 2: Convert to fraction form
    79,264.94/118,910.54 = 39,285.81/x
  3. Step 3: Cross multiply
    79,264.94x = 118,910.54 × 39,285.81
  4. Step 4: Simplify right side
    79,264.94x = 4,671,496,286.88
  5. Step 5: Solve for x
    x = 4,671,496,286.88/79,264.94
  6. Step 6: Final answer
    x = 58,935.22

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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.