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Finding the Fourth Proportional to 443,589.53, 665,574.93 and 144,161.88

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Solution

The fourth proportional to 443,589.53, 665,574.93 and 144,161.88 is: 216,304.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,589.53 : 665,574.93 = 144,161.88 : x
  2. Step 2: Convert to fraction form
    443,589.53/665,574.93 = 144,161.88/x
  3. Step 3: Cross multiply
    443,589.53x = 665,574.93 × 144,161.88
  4. Step 4: Simplify right side
    443,589.53x = 95,950,533,189.67
  5. Step 5: Solve for x
    x = 95,950,533,189.67/443,589.53
  6. Step 6: Final answer
    x = 216,304.78

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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.