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Finding the Fourth Proportional to 181,963.64, 251,103.16 and 101,386.96

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Solution

The fourth proportional to 181,963.64, 251,103.16 and 101,386.96 is: 139,910.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,963.64 : 251,103.16 = 101,386.96 : x
  2. Step 2: Convert to fraction form
    181,963.64/251,103.16 = 101,386.96/x
  3. Step 3: Cross multiply
    181,963.64x = 251,103.16 × 101,386.96
  4. Step 4: Simplify right side
    181,963.64x = 25,458,586,038.79
  5. Step 5: Solve for x
    x = 25,458,586,038.79/181,963.64
  6. Step 6: Final answer
    x = 139,910.29

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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.