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Finding the Fourth Proportional to 304,527.12, 420,236.90 and 168,567

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Solution

The fourth proportional to 304,527.12, 420,236.90 and 168,567 is: 232,616.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,527.12 : 420,236.90 = 168,567 : x
  2. Step 2: Convert to fraction form
    304,527.12/420,236.90 = 168,567/x
  3. Step 3: Cross multiply
    304,527.12x = 420,236.90 × 168,567
  4. Step 4: Simplify right side
    304,527.12x = 70,838,073,522.30
  5. Step 5: Solve for x
    x = 70,838,073,522.30/304,527.12
  6. Step 6: Final answer
    x = 232,616.63

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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.