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Finding the Fourth Proportional to 481,649.85, 722,476.49 and 161,792.60

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Solution

The fourth proportional to 481,649.85, 722,476.49 and 161,792.60 is: 242,689.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,649.85 : 722,476.49 = 161,792.60 : x
  2. Step 2: Convert to fraction form
    481,649.85/722,476.49 = 161,792.60/x
  3. Step 3: Cross multiply
    481,649.85x = 722,476.49 × 161,792.60
  4. Step 4: Simplify right side
    481,649.85x = 116,891,345,334.63
  5. Step 5: Solve for x
    x = 116,891,345,334.63/481,649.85
  6. Step 6: Final answer
    x = 242,689.47

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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.