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Finding the Fourth Proportional to 304,889.58, 420,713.46 and 168,889.50

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Solution

The fourth proportional to 304,889.58, 420,713.46 and 168,889.50 is: 233,048.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,889.58 : 420,713.46 = 168,889.50 : x
  2. Step 2: Convert to fraction form
    304,889.58/420,713.46 = 168,889.50/x
  3. Step 3: Cross multiply
    304,889.58x = 420,713.46 × 168,889.50
  4. Step 4: Simplify right side
    304,889.58x = 71,054,085,902.67
  5. Step 5: Solve for x
    x = 71,054,085,902.67/304,889.58
  6. Step 6: Final answer
    x = 233,048.59

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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.