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Finding the Fourth Proportional to 116,991.46, 161,448.24 and 66,015.01

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Solution

The fourth proportional to 116,991.46, 161,448.24 and 66,015.01 is: 91,100.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,991.46 : 161,448.24 = 66,015.01 : x
  2. Step 2: Convert to fraction form
    116,991.46/161,448.24 = 66,015.01/x
  3. Step 3: Cross multiply
    116,991.46x = 161,448.24 × 66,015.01
  4. Step 4: Simplify right side
    116,991.46x = 10,658,007,178.08
  5. Step 5: Solve for x
    x = 10,658,007,178.08/116,991.46
  6. Step 6: Final answer
    x = 91,100.73

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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.