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Finding the Fourth Proportional to 326,989.26, 451,230.66 and 191,035.80

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Solution

The fourth proportional to 326,989.26, 451,230.66 and 191,035.80 is: 263,620.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,989.26 : 451,230.66 = 191,035.80 : x
  2. Step 2: Convert to fraction form
    326,989.26/451,230.66 = 191,035.80/x
  3. Step 3: Cross multiply
    326,989.26x = 451,230.66 × 191,035.80
  4. Step 4: Simplify right side
    326,989.26x = 86,201,210,117.63
  5. Step 5: Solve for x
    x = 86,201,210,117.63/326,989.26
  6. Step 6: Final answer
    x = 263,620.92

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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.