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Finding the Fourth Proportional to 304,256.17, 419,871.63 and 168,287.68

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Solution

The fourth proportional to 304,256.17, 419,871.63 and 168,287.68 is: 232,235.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,256.17 : 419,871.63 = 168,287.68 : x
  2. Step 2: Convert to fraction form
    304,256.17/419,871.63 = 168,287.68/x
  3. Step 3: Cross multiply
    304,256.17x = 419,871.63 × 168,287.68
  4. Step 4: Simplify right side
    304,256.17x = 70,659,222,510.52
  5. Step 5: Solve for x
    x = 70,659,222,510.52/304,256.17
  6. Step 6: Final answer
    x = 232,235.96

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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.