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Finding the Fourth Proportional to 325,155.78, 448,715.48 and 181,918.62

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Solution

The fourth proportional to 325,155.78, 448,715.48 and 181,918.62 is: 251,047.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,155.78 : 448,715.48 = 181,918.62 : x
  2. Step 2: Convert to fraction form
    325,155.78/448,715.48 = 181,918.62/x
  3. Step 3: Cross multiply
    325,155.78x = 448,715.48 × 181,918.62
  4. Step 4: Simplify right side
    325,155.78x = 81,629,699,984.64
  5. Step 5: Solve for x
    x = 81,629,699,984.64/325,155.78
  6. Step 6: Final answer
    x = 251,047.97

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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.