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Finding the Fourth Proportional to 326,754.04, 490,322.90 and 137,199.83

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Solution

The fourth proportional to 326,754.04, 490,322.90 and 137,199.83 is: 205,880.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,754.04 : 490,322.90 = 137,199.83 : x
  2. Step 2: Convert to fraction form
    326,754.04/490,322.90 = 137,199.83/x
  3. Step 3: Cross multiply
    326,754.04x = 490,322.90 × 137,199.83
  4. Step 4: Simplify right side
    326,754.04x = 67,272,217,226.20
  5. Step 5: Solve for x
    x = 67,272,217,226.20/326,754.04
  6. Step 6: Final answer
    x = 205,880.29

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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.