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Finding the Fourth Proportional to 116,505.58, 174,810.68 and 69,213.09

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Solution

The fourth proportional to 116,505.58, 174,810.68 and 69,213.09 is: 103,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,505.58 : 174,810.68 = 69,213.09 : x
  2. Step 2: Convert to fraction form
    116,505.58/174,810.68 = 69,213.09/x
  3. Step 3: Cross multiply
    116,505.58x = 174,810.68 × 69,213.09
  4. Step 4: Simplify right side
    116,505.58x = 12,099,187,327.80
  5. Step 5: Solve for x
    x = 12,099,187,327.80/116,505.58
  6. Step 6: Final answer
    x = 103,850.71

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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.