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Finding the Fourth Proportional to 105,991.92, 146,261.97 and 60,670.26

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Solution

The fourth proportional to 105,991.92, 146,261.97 and 60,670.26 is: 83,721.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,991.92 : 146,261.97 = 60,670.26 : x
  2. Step 2: Convert to fraction form
    105,991.92/146,261.97 = 60,670.26/x
  3. Step 3: Cross multiply
    105,991.92x = 146,261.97 × 60,670.26
  4. Step 4: Simplify right side
    105,991.92x = 8,873,751,748.01
  5. Step 5: Solve for x
    x = 8,873,751,748.01/105,991.92
  6. Step 6: Final answer
    x = 83,721.02

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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.