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Finding the Fourth Proportional to 116,705.44, 161,055.56 and 68,958.66

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Solution

The fourth proportional to 116,705.44, 161,055.56 and 68,958.66 is: 95,164.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,705.44 : 161,055.56 = 68,958.66 : x
  2. Step 2: Convert to fraction form
    116,705.44/161,055.56 = 68,958.66/x
  3. Step 3: Cross multiply
    116,705.44x = 161,055.56 × 68,958.66
  4. Step 4: Simplify right side
    116,705.44x = 11,106,175,603.15
  5. Step 5: Solve for x
    x = 11,106,175,603.15/116,705.44
  6. Step 6: Final answer
    x = 95,164.16

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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.