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Finding the Fourth Proportional to 168,661.36, 232,743.54 and 93,205

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Solution

The fourth proportional to 168,661.36, 232,743.54 and 93,205 is: 128,617.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,661.36 : 232,743.54 = 93,205 : x
  2. Step 2: Convert to fraction form
    168,661.36/232,743.54 = 93,205/x
  3. Step 3: Cross multiply
    168,661.36x = 232,743.54 × 93,205
  4. Step 4: Simplify right side
    168,661.36x = 21,692,861,645.70
  5. Step 5: Solve for x
    x = 21,692,861,645.70/168,661.36
  6. Step 6: Final answer
    x = 128,617.85

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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.