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Finding the Fourth Proportional to 323,290.62, 446,140.94 and 187,403.42

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Solution

The fourth proportional to 323,290.62, 446,140.94 and 187,403.42 is: 258,616.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,290.62 : 446,140.94 = 187,403.42 : x
  2. Step 2: Convert to fraction form
    323,290.62/446,140.94 = 187,403.42/x
  3. Step 3: Cross multiply
    323,290.62x = 446,140.94 × 187,403.42
  4. Step 4: Simplify right side
    323,290.62x = 83,608,338,663.42
  5. Step 5: Solve for x
    x = 83,608,338,663.42/323,290.62
  6. Step 6: Final answer
    x = 258,616.66

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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.