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Finding the Fourth Proportional to 325,887.21, 488,831.22 and 89,231.94

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Solution

The fourth proportional to 325,887.21, 488,831.22 and 89,231.94 is: 133,848.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,887.21 : 488,831.22 = 89,231.94 : x
  2. Step 2: Convert to fraction form
    325,887.21/488,831.22 = 89,231.94/x
  3. Step 3: Cross multiply
    325,887.21x = 488,831.22 × 89,231.94
  4. Step 4: Simplify right side
    325,887.21x = 43,619,358,093.17
  5. Step 5: Solve for x
    x = 43,619,358,093.17/325,887.21
  6. Step 6: Final answer
    x = 133,848.02

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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.