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Finding the Fourth Proportional to 326,672.80, 450,777.09 and 183,400

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Solution

The fourth proportional to 326,672.80, 450,777.09 and 183,400 is: 253,074.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,672.80 : 450,777.09 = 183,400 : x
  2. Step 2: Convert to fraction form
    326,672.80/450,777.09 = 183,400/x
  3. Step 3: Cross multiply
    326,672.80x = 450,777.09 × 183,400
  4. Step 4: Simplify right side
    326,672.80x = 82,672,518,306
  5. Step 5: Solve for x
    x = 82,672,518,306/326,672.80
  6. Step 6: Final answer
    x = 253,074.39

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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.