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Finding the Fourth Proportional to 326,672.30, 450,776.40 and 183,399.50

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Solution

The fourth proportional to 326,672.30, 450,776.40 and 183,399.50 is: 253,073.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,672.30 : 450,776.40 = 183,399.50 : x
  2. Step 2: Convert to fraction form
    326,672.30/450,776.40 = 183,399.50/x
  3. Step 3: Cross multiply
    326,672.30x = 450,776.40 × 183,399.50
  4. Step 4: Simplify right side
    326,672.30x = 82,672,166,371.80
  5. Step 5: Solve for x
    x = 82,672,166,371.80/326,672.30
  6. Step 6: Final answer
    x = 253,073.70

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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.