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Finding the Fourth Proportional to 326,063.81, 449,814.97 and 230,623.13

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Solution

The fourth proportional to 326,063.81, 449,814.97 and 230,623.13 is: 318,151.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,063.81 : 449,814.97 = 230,623.13 : x
  2. Step 2: Convert to fraction form
    326,063.81/449,814.97 = 230,623.13/x
  3. Step 3: Cross multiply
    326,063.81x = 449,814.97 × 230,623.13
  4. Step 4: Simplify right side
    326,063.81x = 103,737,737,715.07
  5. Step 5: Solve for x
    x = 103,737,737,715.07/326,063.81
  6. Step 6: Final answer
    x = 318,151.64

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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.