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Finding the Fourth Proportional to 304,794.64, 420,630.44 and 168,828.56

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Solution

The fourth proportional to 304,794.64, 420,630.44 and 168,828.56 is: 232,991.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,794.64 : 420,630.44 = 168,828.56 : x
  2. Step 2: Convert to fraction form
    304,794.64/420,630.44 = 168,828.56/x
  3. Step 3: Cross multiply
    304,794.64x = 420,630.44 × 168,828.56
  4. Step 4: Simplify right side
    304,794.64x = 71,014,432,528.94
  5. Step 5: Solve for x
    x = 71,014,432,528.94/304,794.64
  6. Step 6: Final answer
    x = 232,991.08

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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.