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Finding the Fourth Proportional to 202,649.28, 279,670.49 and 112,003.30

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Solution

The fourth proportional to 202,649.28, 279,670.49 and 112,003.30 is: 154,572.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,649.28 : 279,670.49 = 112,003.30 : x
  2. Step 2: Convert to fraction form
    202,649.28/279,670.49 = 112,003.30/x
  3. Step 3: Cross multiply
    202,649.28x = 279,670.49 × 112,003.30
  4. Step 4: Simplify right side
    202,649.28x = 31,324,017,792.62
  5. Step 5: Solve for x
    x = 31,324,017,792.62/202,649.28
  6. Step 6: Final answer
    x = 154,572.56

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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.