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Finding the Fourth Proportional to 235,898.67, 353,672.51 and 212,136.51

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Solution

The fourth proportional to 235,898.67, 353,672.51 and 212,136.51 is: 318,046.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,898.67 : 353,672.51 = 212,136.51 : x
  2. Step 2: Convert to fraction form
    235,898.67/353,672.51 = 212,136.51/x
  3. Step 3: Cross multiply
    235,898.67x = 353,672.51 × 212,136.51
  4. Step 4: Simplify right side
    235,898.67x = 75,026,850,893.66
  5. Step 5: Solve for x
    x = 75,026,850,893.66/235,898.67
  6. Step 6: Final answer
    x = 318,046.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.