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Finding the Fourth Proportional to 223,228.56, 308,058.73 and 121,256.01

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Solution

The fourth proportional to 223,228.56, 308,058.73 and 121,256.01 is: 167,335.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,228.56 : 308,058.73 = 121,256.01 : x
  2. Step 2: Convert to fraction form
    223,228.56/308,058.73 = 121,256.01/x
  3. Step 3: Cross multiply
    223,228.56x = 308,058.73 × 121,256.01
  4. Step 4: Simplify right side
    223,228.56x = 37,353,972,142.33
  5. Step 5: Solve for x
    x = 37,353,972,142.33/223,228.56
  6. Step 6: Final answer
    x = 167,335.09

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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.