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Finding the Fourth Proportional to 104,803.76, 144,624.65 and 57,057.27

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Solution

The fourth proportional to 104,803.76, 144,624.65 and 57,057.27 is: 78,736.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,803.76 : 144,624.65 = 57,057.27 : x
  2. Step 2: Convert to fraction form
    104,803.76/144,624.65 = 57,057.27/x
  3. Step 3: Cross multiply
    104,803.76x = 144,624.65 × 57,057.27
  4. Step 4: Simplify right side
    104,803.76x = 8,251,887,418.42
  5. Step 5: Solve for x
    x = 8,251,887,418.42/104,803.76
  6. Step 6: Final answer
    x = 78,736.56

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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.