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Finding the Fourth Proportional to 236,058.64, 325,769.16 and 128,637.52

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Solution

The fourth proportional to 236,058.64, 325,769.16 and 128,637.52 is: 177,524.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,058.64 : 325,769.16 = 128,637.52 : x
  2. Step 2: Convert to fraction form
    236,058.64/325,769.16 = 128,637.52/x
  3. Step 3: Cross multiply
    236,058.64x = 325,769.16 × 128,637.52
  4. Step 4: Simplify right side
    236,058.64x = 41,906,136,834.88
  5. Step 5: Solve for x
    x = 41,906,136,834.88/236,058.64
  6. Step 6: Final answer
    x = 177,524.27

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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.