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Finding the Fourth Proportional to 181,963.76, 273,139.73 and 161,036.90

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Solution

The fourth proportional to 181,963.76, 273,139.73 and 161,036.90 is: 241,727.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,963.76 : 273,139.73 = 161,036.90 : x
  2. Step 2: Convert to fraction form
    181,963.76/273,139.73 = 161,036.90/x
  3. Step 3: Cross multiply
    181,963.76x = 273,139.73 × 161,036.90
  4. Step 4: Simplify right side
    181,963.76x = 43,985,573,215.15
  5. Step 5: Solve for x
    x = 43,985,573,215.15/181,963.76
  6. Step 6: Final answer
    x = 241,727.11

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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.