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Finding the Fourth Proportional to 104,958.59, 144,843.80 and 61,939.08

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Solution

The fourth proportional to 104,958.59, 144,843.80 and 61,939.08 is: 85,476.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,958.59 : 144,843.80 = 61,939.08 : x
  2. Step 2: Convert to fraction form
    104,958.59/144,843.80 = 61,939.08/x
  3. Step 3: Cross multiply
    104,958.59x = 144,843.80 × 61,939.08
  4. Step 4: Simplify right side
    104,958.59x = 8,971,491,406.01
  5. Step 5: Solve for x
    x = 8,971,491,406.01/104,958.59
  6. Step 6: Final answer
    x = 85,476.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.