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Finding the Fourth Proportional to 104,485.93, 144,213.54 and 68,679.27

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Solution

The fourth proportional to 104,485.93, 144,213.54 and 68,679.27 is: 94,792.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,485.93 : 144,213.54 = 68,679.27 : x
  2. Step 2: Convert to fraction form
    104,485.93/144,213.54 = 68,679.27/x
  3. Step 3: Cross multiply
    104,485.93x = 144,213.54 × 68,679.27
  4. Step 4: Simplify right side
    104,485.93x = 9,904,480,651.32
  5. Step 5: Solve for x
    x = 9,904,480,651.32/104,485.93
  6. Step 6: Final answer
    x = 94,792.48

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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.