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Finding the Fourth Proportional to 161,243.81, 241,971.06 and 61,404.97

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Solution

The fourth proportional to 161,243.81, 241,971.06 and 61,404.97 is: 92,147.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,243.81 : 241,971.06 = 61,404.97 : x
  2. Step 2: Convert to fraction form
    161,243.81/241,971.06 = 61,404.97/x
  3. Step 3: Cross multiply
    161,243.81x = 241,971.06 × 61,404.97
  4. Step 4: Simplify right side
    161,243.81x = 14,858,224,470.31
  5. Step 5: Solve for x
    x = 14,858,224,470.31/161,243.81
  6. Step 6: Final answer
    x = 92,147.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.