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Finding the Fourth Proportional to 158,896.36, 238,444.98 and 88,821.64

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Solution

The fourth proportional to 158,896.36, 238,444.98 and 88,821.64 is: 133,288.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,896.36 : 238,444.98 = 88,821.64 : x
  2. Step 2: Convert to fraction form
    158,896.36/238,444.98 = 88,821.64/x
  3. Step 3: Cross multiply
    158,896.36x = 238,444.98 × 88,821.64
  4. Step 4: Simplify right side
    158,896.36x = 21,179,074,173.37
  5. Step 5: Solve for x
    x = 21,179,074,173.37/158,896.36
  6. Step 6: Final answer
    x = 133,288.61

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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.