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Finding the Fourth Proportional to 117,730.44, 162,464.46 and 64,015.56

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Solution

The fourth proportional to 117,730.44, 162,464.46 and 64,015.56 is: 88,339.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,730.44 : 162,464.46 = 64,015.56 : x
  2. Step 2: Convert to fraction form
    117,730.44/162,464.46 = 64,015.56/x
  3. Step 3: Cross multiply
    117,730.44x = 162,464.46 × 64,015.56
  4. Step 4: Simplify right side
    117,730.44x = 10,400,253,387.00
  5. Step 5: Solve for x
    x = 10,400,253,387.00/117,730.44
  6. Step 6: Final answer
    x = 88,339.54

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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.