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Finding the Fourth Proportional to 339,784.96, 468,891.84 and 188,878.72

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Solution

The fourth proportional to 339,784.96, 468,891.84 and 188,878.72 is: 260,646.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,784.96 : 468,891.84 = 188,878.72 : x
  2. Step 2: Convert to fraction form
    339,784.96/468,891.84 = 188,878.72/x
  3. Step 3: Cross multiply
    339,784.96x = 468,891.84 × 188,878.72
  4. Step 4: Simplify right side
    339,784.96x = 88,563,690,557.64
  5. Step 5: Solve for x
    x = 88,563,690,557.64/339,784.96
  6. Step 6: Final answer
    x = 260,646.29

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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.