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Finding the Fourth Proportional to 158,159.59, 236,976.94 and 111,314.05

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Solution

The fourth proportional to 158,159.59, 236,976.94 and 111,314.05 is: 166,786.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,159.59 : 236,976.94 = 111,314.05 : x
  2. Step 2: Convert to fraction form
    158,159.59/236,976.94 = 111,314.05/x
  3. Step 3: Cross multiply
    158,159.59x = 236,976.94 × 111,314.05
  4. Step 4: Simplify right side
    158,159.59x = 26,378,862,494.71
  5. Step 5: Solve for x
    x = 26,378,862,494.71/158,159.59
  6. Step 6: Final answer
    x = 166,786.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.