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Finding the Fourth Proportional to 339,626.95, 468,690.05 and 186,679.28

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Solution

The fourth proportional to 339,626.95, 468,690.05 and 186,679.28 is: 257,620.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,626.95 : 468,690.05 = 186,679.28 : x
  2. Step 2: Convert to fraction form
    339,626.95/468,690.05 = 186,679.28/x
  3. Step 3: Cross multiply
    339,626.95x = 468,690.05 × 186,679.28
  4. Step 4: Simplify right side
    339,626.95x = 87,494,720,143.77
  5. Step 5: Solve for x
    x = 87,494,720,143.77/339,626.95
  6. Step 6: Final answer
    x = 257,620.08

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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.