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Finding the Fourth Proportional to 449,143.65, 673,569.54 and 149,543.55

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Solution

The fourth proportional to 449,143.65, 673,569.54 and 149,543.55 is: 224,266.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,143.65 : 673,569.54 = 149,543.55 : x
  2. Step 2: Convert to fraction form
    449,143.65/673,569.54 = 149,543.55/x
  3. Step 3: Cross multiply
    449,143.65x = 673,569.54 × 149,543.55
  4. Step 4: Simplify right side
    449,143.65x = 100,727,980,183.47
  5. Step 5: Solve for x
    x = 100,727,980,183.47/449,143.65
  6. Step 6: Final answer
    x = 224,266.74

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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.