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Finding the Fourth Proportional to 239,081.82, 358,456.26 and 105,889.87

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Solution

The fourth proportional to 239,081.82, 358,456.26 and 105,889.87 is: 158,761.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,081.82 : 358,456.26 = 105,889.87 : x
  2. Step 2: Convert to fraction form
    239,081.82/358,456.26 = 105,889.87/x
  3. Step 3: Cross multiply
    239,081.82x = 358,456.26 × 105,889.87
  4. Step 4: Simplify right side
    239,081.82x = 37,956,887,617.24
  5. Step 5: Solve for x
    x = 37,956,887,617.24/239,081.82
  6. Step 6: Final answer
    x = 158,761.08

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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.