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Finding the Fourth Proportional to 104,800.80, 144,619.26 and 57,051.30

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Solution

The fourth proportional to 104,800.80, 144,619.26 and 57,051.30 is: 78,727.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,800.80 : 144,619.26 = 57,051.30 : x
  2. Step 2: Convert to fraction form
    104,800.80/144,619.26 = 57,051.30/x
  3. Step 3: Cross multiply
    104,800.80x = 144,619.26 × 57,051.30
  4. Step 4: Simplify right side
    104,800.80x = 8,250,716,788.04
  5. Step 5: Solve for x
    x = 8,250,716,788.04/104,800.80
  6. Step 6: Final answer
    x = 78,727.61

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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.