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Finding the Fourth Proportional to 341,919.70, 471,858.61 and 188,967.80

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Solution

The fourth proportional to 341,919.70, 471,858.61 and 188,967.80 is: 260,780.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,919.70 : 471,858.61 = 188,967.80 : x
  2. Step 2: Convert to fraction form
    341,919.70/471,858.61 = 188,967.80/x
  3. Step 3: Cross multiply
    341,919.70x = 471,858.61 × 188,967.80
  4. Step 4: Simplify right side
    341,919.70x = 89,166,083,442.76
  5. Step 5: Solve for x
    x = 89,166,083,442.76/341,919.70
  6. Step 6: Final answer
    x = 260,780.78

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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.