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Finding the Fourth Proportional to 238,883.70, 358,313.79 and 89,112.48

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Solution

The fourth proportional to 238,883.70, 358,313.79 and 89,112.48 is: 133,664.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,883.70 : 358,313.79 = 89,112.48 : x
  2. Step 2: Convert to fraction form
    238,883.70/358,313.79 = 89,112.48/x
  3. Step 3: Cross multiply
    238,883.70x = 358,313.79 × 89,112.48
  4. Step 4: Simplify right side
    238,883.70x = 31,930,230,445.10
  5. Step 5: Solve for x
    x = 31,930,230,445.10/238,883.70
  6. Step 6: Final answer
    x = 133,664.33

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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.