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Finding the Fourth Proportional to 116,896.76, 161,317.48 and 63,181.77

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Solution

The fourth proportional to 116,896.76, 161,317.48 and 63,181.77 is: 87,190.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,896.76 : 161,317.48 = 63,181.77 : x
  2. Step 2: Convert to fraction form
    116,896.76/161,317.48 = 63,181.77/x
  3. Step 3: Cross multiply
    116,896.76x = 161,317.48 × 63,181.77
  4. Step 4: Simplify right side
    116,896.76x = 10,192,323,918.34
  5. Step 5: Solve for x
    x = 10,192,323,918.34/116,896.76
  6. Step 6: Final answer
    x = 87,190.82

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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.