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Finding the Fourth Proportional to 323,907.12, 446,972.58 and 187,930.53

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Solution

The fourth proportional to 323,907.12, 446,972.58 and 187,930.53 is: 259,332.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,907.12 : 446,972.58 = 187,930.53 : x
  2. Step 2: Convert to fraction form
    323,907.12/446,972.58 = 187,930.53/x
  3. Step 3: Cross multiply
    323,907.12x = 446,972.58 × 187,930.53
  4. Step 4: Simplify right side
    323,907.12x = 83,999,793,854.87
  5. Step 5: Solve for x
    x = 83,999,793,854.87/323,907.12
  6. Step 6: Final answer
    x = 259,332.97

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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.