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Finding the Fourth Proportional to 304,120.17, 419,692.19 and 168,165.32

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Solution

The fourth proportional to 304,120.17, 419,692.19 and 168,165.32 is: 232,071.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,120.17 : 419,692.19 = 168,165.32 : x
  2. Step 2: Convert to fraction form
    304,120.17/419,692.19 = 168,165.32/x
  3. Step 3: Cross multiply
    304,120.17x = 419,692.19 × 168,165.32
  4. Step 4: Simplify right side
    304,120.17x = 70,577,668,493.56
  5. Step 5: Solve for x
    x = 70,577,668,493.56/304,120.17
  6. Step 6: Final answer
    x = 232,071.65

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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.