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Finding the Fourth Proportional to 114,786.51, 158,350.26 and 98,843.28

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Solution

The fourth proportional to 114,786.51, 158,350.26 and 98,843.28 is: 136,356.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,786.51 : 158,350.26 = 98,843.28 : x
  2. Step 2: Convert to fraction form
    114,786.51/158,350.26 = 98,843.28/x
  3. Step 3: Cross multiply
    114,786.51x = 158,350.26 × 98,843.28
  4. Step 4: Simplify right side
    114,786.51x = 15,651,858,864.10
  5. Step 5: Solve for x
    x = 15,651,858,864.10/114,786.51
  6. Step 6: Final answer
    x = 136,356.26

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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.