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Finding the Fourth Proportional to 236,067.48, 325,776.78 and 128,637.48

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Solution

The fourth proportional to 236,067.48, 325,776.78 and 128,637.48 is: 177,521.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,067.48 : 325,776.78 = 128,637.48 : x
  2. Step 2: Convert to fraction form
    236,067.48/325,776.78 = 128,637.48/x
  3. Step 3: Cross multiply
    236,067.48x = 325,776.78 × 128,637.48
  4. Step 4: Simplify right side
    236,067.48x = 41,907,104,021.71
  5. Step 5: Solve for x
    x = 41,907,104,021.71/236,067.48
  6. Step 6: Final answer
    x = 177,521.72

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1.5x scale

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.