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Finding the Fourth Proportional to 325,343.51, 488,099.40 and 190,521.44

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Solution

The fourth proportional to 325,343.51, 488,099.40 and 190,521.44 is: 285,831.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,343.51 : 488,099.40 = 190,521.44 : x
  2. Step 2: Convert to fraction form
    325,343.51/488,099.40 = 190,521.44/x
  3. Step 3: Cross multiply
    325,343.51x = 488,099.40 × 190,521.44
  4. Step 4: Simplify right side
    325,343.51x = 92,993,400,551.14
  5. Step 5: Solve for x
    x = 92,993,400,551.14/325,343.51
  6. Step 6: Final answer
    x = 285,831.43

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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.