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Finding the Fourth Proportional to 339,434.50, 468,434.20 and 188,531.50

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Solution

The fourth proportional to 339,434.50, 468,434.20 and 188,531.50 is: 260,181.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,434.50 : 468,434.20 = 188,531.50 : x
  2. Step 2: Convert to fraction form
    339,434.50/468,434.20 = 188,531.50/x
  3. Step 3: Cross multiply
    339,434.50x = 468,434.20 × 188,531.50
  4. Step 4: Simplify right side
    339,434.50x = 88,314,602,377.30
  5. Step 5: Solve for x
    x = 88,314,602,377.30/339,434.50
  6. Step 6: Final answer
    x = 260,181.57

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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.