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Finding the Fourth Proportional to 116,958.94, 161,403.21 and 63,243.83

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Solution

The fourth proportional to 116,958.94, 161,403.21 and 63,243.83 is: 87,276.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,958.94 : 161,403.21 = 63,243.83 : x
  2. Step 2: Convert to fraction form
    116,958.94/161,403.21 = 63,243.83/x
  3. Step 3: Cross multiply
    116,958.94x = 161,403.21 × 63,243.83
  4. Step 4: Simplify right side
    116,958.94x = 10,207,757,174.69
  5. Step 5: Solve for x
    x = 10,207,757,174.69/116,958.94
  6. Step 6: Final answer
    x = 87,276.42

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1.5x scale

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.