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Finding the Fourth Proportional to 323,491.12, 446,419.50 and 187,605.64

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Solution

The fourth proportional to 323,491.12, 446,419.50 and 187,605.64 is: 258,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,491.12 : 446,419.50 = 187,605.64 : x
  2. Step 2: Convert to fraction form
    323,491.12/446,419.50 = 187,605.64/x
  3. Step 3: Cross multiply
    323,491.12x = 446,419.50 × 187,605.64
  4. Step 4: Simplify right side
    323,491.12x = 83,750,816,005.98
  5. Step 5: Solve for x
    x = 83,750,816,005.98/323,491.12
  6. Step 6: Final answer
    x = 258,896.80

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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.