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Finding the Fourth Proportional to 111,649.44, 154,084.80 and 63,917.76

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Solution

The fourth proportional to 111,649.44, 154,084.80 and 63,917.76 is: 88,211.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,649.44 : 154,084.80 = 63,917.76 : x
  2. Step 2: Convert to fraction form
    111,649.44/154,084.80 = 63,917.76/x
  3. Step 3: Cross multiply
    111,649.44x = 154,084.80 × 63,917.76
  4. Step 4: Simplify right side
    111,649.44x = 9,848,755,266.05
  5. Step 5: Solve for x
    x = 9,848,755,266.05/111,649.44
  6. Step 6: Final answer
    x = 88,211.42

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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.