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Finding the Fourth Proportional to 259,791.42, 358,473.72 and 157,763.82

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Solution

The fourth proportional to 259,791.42, 358,473.72 and 157,763.82 is: 217,690.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,791.42 : 358,473.72 = 157,763.82 : x
  2. Step 2: Convert to fraction form
    259,791.42/358,473.72 = 157,763.82/x
  3. Step 3: Cross multiply
    259,791.42x = 358,473.72 × 157,763.82
  4. Step 4: Simplify right side
    259,791.42x = 56,554,183,436.81
  5. Step 5: Solve for x
    x = 56,554,183,436.81/259,791.42
  6. Step 6: Final answer
    x = 217,690.73

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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.