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Finding the Fourth Proportional to 164,490.40, 246,735.60 and 105,441.40

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Solution

The fourth proportional to 164,490.40, 246,735.60 and 105,441.40 is: 158,162.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,490.40 : 246,735.60 = 105,441.40 : x
  2. Step 2: Convert to fraction form
    164,490.40/246,735.60 = 105,441.40/x
  3. Step 3: Cross multiply
    164,490.40x = 246,735.60 × 105,441.40
  4. Step 4: Simplify right side
    164,490.40x = 26,016,147,093.84
  5. Step 5: Solve for x
    x = 26,016,147,093.84/164,490.40
  6. Step 6: Final answer
    x = 158,162.10

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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.