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Finding the Fourth Proportional to 79,161.66, 118,748.65 and 23,002.58

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Solution

The fourth proportional to 79,161.66, 118,748.65 and 23,002.58 is: 34,505.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,161.66 : 118,748.65 = 23,002.58 : x
  2. Step 2: Convert to fraction form
    79,161.66/118,748.65 = 23,002.58/x
  3. Step 3: Cross multiply
    79,161.66x = 118,748.65 × 23,002.58
  4. Step 4: Simplify right side
    79,161.66x = 2,731,525,321.52
  5. Step 5: Solve for x
    x = 2,731,525,321.52/79,161.66
  6. Step 6: Final answer
    x = 34,505.66

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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.