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Finding the Fourth Proportional to 326,350.82, 489,406.63 and 113,063.65

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Solution

The fourth proportional to 326,350.82, 489,406.63 and 113,063.65 is: 169,554.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,350.82 : 489,406.63 = 113,063.65 : x
  2. Step 2: Convert to fraction form
    326,350.82/489,406.63 = 113,063.65/x
  3. Step 3: Cross multiply
    326,350.82x = 489,406.63 × 113,063.65
  4. Step 4: Simplify right side
    326,350.82x = 55,334,098,945.81
  5. Step 5: Solve for x
    x = 55,334,098,945.81/326,350.82
  6. Step 6: Final answer
    x = 169,554.04

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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.