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Finding the Fourth Proportional to 111,685.96, 167,369.91 and 55,470.97

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Solution

The fourth proportional to 111,685.96, 167,369.91 and 55,470.97 is: 83,127.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,685.96 : 167,369.91 = 55,470.97 : x
  2. Step 2: Convert to fraction form
    111,685.96/167,369.91 = 55,470.97/x
  3. Step 3: Cross multiply
    111,685.96x = 167,369.91 × 55,470.97
  4. Step 4: Simplify right side
    111,685.96x = 9,284,171,256.51
  5. Step 5: Solve for x
    x = 9,284,171,256.51/111,685.96
  6. Step 6: Final answer
    x = 83,127.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.