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Finding the Fourth Proportional to 304,522.48, 420,231.90 and 168,562

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Solution

The fourth proportional to 304,522.48, 420,231.90 and 168,562 is: 232,610.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,522.48 : 420,231.90 = 168,562 : x
  2. Step 2: Convert to fraction form
    304,522.48/420,231.90 = 168,562/x
  3. Step 3: Cross multiply
    304,522.48x = 420,231.90 × 168,562
  4. Step 4: Simplify right side
    304,522.48x = 70,835,129,527.80
  5. Step 5: Solve for x
    x = 70,835,129,527.80/304,522.48
  6. Step 6: Final answer
    x = 232,610.51

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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.