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Finding the Fourth Proportional to 116,794.31, 161,163.07 and 65,805.92

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Solution

The fourth proportional to 116,794.31, 161,163.07 and 65,805.92 is: 90,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,794.31 : 161,163.07 = 65,805.92 : x
  2. Step 2: Convert to fraction form
    116,794.31/161,163.07 = 65,805.92/x
  3. Step 3: Cross multiply
    116,794.31x = 161,163.07 × 65,805.92
  4. Step 4: Simplify right side
    116,794.31x = 10,605,483,725.41
  5. Step 5: Solve for x
    x = 10,605,483,725.41/116,794.31
  6. Step 6: Final answer
    x = 90,804.80

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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.