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Finding the Fourth Proportional to 104,367.28, 144,026.04 and 56,620.48

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Solution

The fourth proportional to 104,367.28, 144,026.04 and 56,620.48 is: 78,135.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,367.28 : 144,026.04 = 56,620.48 : x
  2. Step 2: Convert to fraction form
    104,367.28/144,026.04 = 56,620.48/x
  3. Step 3: Cross multiply
    104,367.28x = 144,026.04 × 56,620.48
  4. Step 4: Simplify right side
    104,367.28x = 8,154,823,517.30
  5. Step 5: Solve for x
    x = 8,154,823,517.30/104,367.28
  6. Step 6: Final answer
    x = 78,135.82

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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.