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Finding the Fourth Proportional to 79,173.66, 118,165.85 and 68,452.59

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Solution

The fourth proportional to 79,173.66, 118,165.85 and 68,452.59 is: 102,164.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,173.66 : 118,165.85 = 68,452.59 : x
  2. Step 2: Convert to fraction form
    79,173.66/118,165.85 = 68,452.59/x
  3. Step 3: Cross multiply
    79,173.66x = 118,165.85 × 68,452.59
  4. Step 4: Simplify right side
    79,173.66x = 8,088,758,482.05
  5. Step 5: Solve for x
    x = 8,088,758,482.05/79,173.66
  6. Step 6: Final answer
    x = 102,164.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.