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Finding the Fourth Proportional to 449,072.63, 673,468.79 and 149,483.19

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Solution

The fourth proportional to 449,072.63, 673,468.79 and 149,483.19 is: 224,178.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,072.63 : 673,468.79 = 149,483.19 : x
  2. Step 2: Convert to fraction form
    449,072.63/673,468.79 = 149,483.19/x
  3. Step 3: Cross multiply
    449,072.63x = 673,468.79 × 149,483.19
  4. Step 4: Simplify right side
    449,072.63x = 100,672,262,347.22
  5. Step 5: Solve for x
    x = 100,672,262,347.22/449,072.63
  6. Step 6: Final answer
    x = 224,178.13

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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.