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Finding the Fourth Proportional to 117,133.44, 161,642.88 and 66,833.28

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Solution

The fourth proportional to 117,133.44, 161,642.88 and 66,833.28 is: 92,229.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,133.44 : 161,642.88 = 66,833.28 : x
  2. Step 2: Convert to fraction form
    117,133.44/161,642.88 = 66,833.28/x
  3. Step 3: Cross multiply
    117,133.44x = 161,642.88 × 66,833.28
  4. Step 4: Simplify right side
    117,133.44x = 10,803,123,859.05
  5. Step 5: Solve for x
    x = 10,803,123,859.05/117,133.44
  6. Step 6: Final answer
    x = 92,229.20

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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.