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Finding the Fourth Proportional to 117,295.44, 161,889.36 and 66,994.40

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Solution

The fourth proportional to 117,295.44, 161,889.36 and 66,994.40 is: 92,464.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,295.44 : 161,889.36 = 66,994.40 : x
  2. Step 2: Convert to fraction form
    117,295.44/161,889.36 = 66,994.40/x
  3. Step 3: Cross multiply
    117,295.44x = 161,889.36 × 66,994.40
  4. Step 4: Simplify right side
    117,295.44x = 10,845,680,539.58
  5. Step 5: Solve for x
    x = 10,845,680,539.58/117,295.44
  6. Step 6: Final answer
    x = 92,464.64

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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.