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Finding the Fourth Proportional to 303,596.90, 418,788.08 and 196,166.93

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Solution

The fourth proportional to 303,596.90, 418,788.08 and 196,166.93 is: 270,596.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,596.90 : 418,788.08 = 196,166.93 : x
  2. Step 2: Convert to fraction form
    303,596.90/418,788.08 = 196,166.93/x
  3. Step 3: Cross multiply
    303,596.90x = 418,788.08 × 196,166.93
  4. Step 4: Simplify right side
    303,596.90x = 82,152,368,899.42
  5. Step 5: Solve for x
    x = 82,152,368,899.42/303,596.90
  6. Step 6: Final answer
    x = 270,596.87

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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.