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Finding the Fourth Proportional to 181,705.90, 272,040.45 and 160,969.90

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Solution

The fourth proportional to 181,705.90, 272,040.45 and 160,969.90 is: 240,995.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,705.90 : 272,040.45 = 160,969.90 : x
  2. Step 2: Convert to fraction form
    181,705.90/272,040.45 = 160,969.90/x
  3. Step 3: Cross multiply
    181,705.90x = 272,040.45 × 160,969.90
  4. Step 4: Simplify right side
    181,705.90x = 43,790,324,032.46
  5. Step 5: Solve for x
    x = 43,790,324,032.46/181,705.90
  6. Step 6: Final answer
    x = 240,995.61

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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.