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Finding the Fourth Proportional to 304,866.02, 420,698.53 and 168,891.85

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Solution

The fourth proportional to 304,866.02, 420,698.53 and 168,891.85 is: 233,061.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,866.02 : 420,698.53 = 168,891.85 : x
  2. Step 2: Convert to fraction form
    304,866.02/420,698.53 = 168,891.85/x
  3. Step 3: Cross multiply
    304,866.02x = 420,698.53 × 168,891.85
  4. Step 4: Simplify right side
    304,866.02x = 71,052,555,419.19
  5. Step 5: Solve for x
    x = 71,052,555,419.19/304,866.02
  6. Step 6: Final answer
    x = 233,061.58

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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.