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Finding the Fourth Proportional to 236,125.56, 325,853.52 and 128,695.68

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Solution

The fourth proportional to 236,125.56, 325,853.52 and 128,695.68 is: 177,600.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,125.56 : 325,853.52 = 128,695.68 : x
  2. Step 2: Convert to fraction form
    236,125.56/325,853.52 = 128,695.68/x
  3. Step 3: Cross multiply
    236,125.56x = 325,853.52 × 128,695.68
  4. Step 4: Simplify right side
    236,125.56x = 41,935,940,336.79
  5. Step 5: Solve for x
    x = 41,935,940,336.79/236,125.56
  6. Step 6: Final answer
    x = 177,600.17

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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.