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Finding the Fourth Proportional to 117,910.22, 162,824.22 and 74,903.60

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Solution

The fourth proportional to 117,910.22, 162,824.22 and 74,903.60 is: 103,435.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,910.22 : 162,824.22 = 74,903.60 : x
  2. Step 2: Convert to fraction form
    117,910.22/162,824.22 = 74,903.60/x
  3. Step 3: Cross multiply
    117,910.22x = 162,824.22 × 74,903.60
  4. Step 4: Simplify right side
    117,910.22x = 12,196,120,245.19
  5. Step 5: Solve for x
    x = 12,196,120,245.19/117,910.22
  6. Step 6: Final answer
    x = 103,435.65

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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.