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Finding the Fourth Proportional to 161,563.75, 222,963.11 and 101,115.07

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Solution

The fourth proportional to 161,563.75, 222,963.11 and 101,115.07 is: 139,542.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,563.75 : 222,963.11 = 101,115.07 : x
  2. Step 2: Convert to fraction form
    161,563.75/222,963.11 = 101,115.07/x
  3. Step 3: Cross multiply
    161,563.75x = 222,963.11 × 101,115.07
  4. Step 4: Simplify right side
    161,563.75x = 22,544,929,969.49
  5. Step 5: Solve for x
    x = 22,544,929,969.49/161,563.75
  6. Step 6: Final answer
    x = 139,542.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.