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Finding the Fourth Proportional to 326,371.71, 489,446.69 and 113,089.86

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Solution

The fourth proportional to 326,371.71, 489,446.69 and 113,089.86 is: 169,596.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,371.71 : 489,446.69 = 113,089.86 : x
  2. Step 2: Convert to fraction form
    326,371.71/489,446.69 = 113,089.86/x
  3. Step 3: Cross multiply
    326,371.71x = 489,446.69 × 113,089.86
  4. Step 4: Simplify right side
    326,371.71x = 55,351,457,084.11
  5. Step 5: Solve for x
    x = 55,351,457,084.11/326,371.71
  6. Step 6: Final answer
    x = 169,596.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.