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Finding the Fourth Proportional to 104,625.93, 144,385.43 and 56,879.47

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Solution

The fourth proportional to 104,625.93, 144,385.43 and 56,879.47 is: 78,494.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,625.93 : 144,385.43 = 56,879.47 : x
  2. Step 2: Convert to fraction form
    104,625.93/144,385.43 = 56,879.47/x
  3. Step 3: Cross multiply
    104,625.93x = 144,385.43 × 56,879.47
  4. Step 4: Simplify right side
    104,625.93x = 8,212,566,734.12
  5. Step 5: Solve for x
    x = 8,212,566,734.12/104,625.93
  6. Step 6: Final answer
    x = 78,494.56

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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.