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Finding the Fourth Proportional to 164,617.79, 246,813.21 and 64,789.44

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Solution

The fourth proportional to 164,617.79, 246,813.21 and 64,789.44 is: 97,139.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,617.79 : 246,813.21 = 64,789.44 : x
  2. Step 2: Convert to fraction form
    164,617.79/246,813.21 = 64,789.44/x
  3. Step 3: Cross multiply
    164,617.79x = 246,813.21 × 64,789.44
  4. Step 4: Simplify right side
    164,617.79x = 15,990,888,734.95
  5. Step 5: Solve for x
    x = 15,990,888,734.95/164,617.79
  6. Step 6: Final answer
    x = 97,139.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.