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Finding the Fourth Proportional to 449,496.60, 673,985.70 and 169,042.20

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Solution

The fourth proportional to 449,496.60, 673,985.70 and 169,042.20 is: 253,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,496.60 : 673,985.70 = 169,042.20 : x
  2. Step 2: Convert to fraction form
    449,496.60/673,985.70 = 169,042.20/x
  3. Step 3: Cross multiply
    449,496.60x = 673,985.70 × 169,042.20
  4. Step 4: Simplify right side
    449,496.60x = 113,932,025,496.54
  5. Step 5: Solve for x
    x = 113,932,025,496.54/449,496.60
  6. Step 6: Final answer
    x = 253,465.82

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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.