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Finding the Fourth Proportional to 104,800.26, 144,619.81 and 57,053.77

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Solution

The fourth proportional to 104,800.26, 144,619.81 and 57,053.77 is: 78,731.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,800.26 : 144,619.81 = 57,053.77 : x
  2. Step 2: Convert to fraction form
    104,800.26/144,619.81 = 57,053.77/x
  3. Step 3: Cross multiply
    104,800.26x = 144,619.81 × 57,053.77
  4. Step 4: Simplify right side
    104,800.26x = 8,251,105,377.18
  5. Step 5: Solve for x
    x = 8,251,105,377.18/104,800.26
  6. Step 6: Final answer
    x = 78,731.73

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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.