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Finding the Fourth Proportional to 121,794.48, 167,923.44 and 93,149.28

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Solution

The fourth proportional to 121,794.48, 167,923.44 and 93,149.28 is: 128,429.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,794.48 : 167,923.44 = 93,149.28 : x
  2. Step 2: Convert to fraction form
    121,794.48/167,923.44 = 93,149.28/x
  3. Step 3: Cross multiply
    121,794.48x = 167,923.44 × 93,149.28
  4. Step 4: Simplify right side
    121,794.48x = 15,641,947,531.12
  5. Step 5: Solve for x
    x = 15,641,947,531.12/121,794.48
  6. Step 6: Final answer
    x = 128,429.03

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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.