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Finding the Fourth Proportional to 79,390.83, 118,873.02 and 41,872.85

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Solution

The fourth proportional to 79,390.83, 118,873.02 and 41,872.85 is: 62,696.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,390.83 : 118,873.02 = 41,872.85 : x
  2. Step 2: Convert to fraction form
    79,390.83/118,873.02 = 41,872.85/x
  3. Step 3: Cross multiply
    79,390.83x = 118,873.02 × 41,872.85
  4. Step 4: Simplify right side
    79,390.83x = 4,977,551,908.40
  5. Step 5: Solve for x
    x = 4,977,551,908.40/79,390.83
  6. Step 6: Final answer
    x = 62,696.81

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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.