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Finding the Fourth Proportional to 294,389.54, 441,289.06 and 136,728.71

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Solution

The fourth proportional to 294,389.54, 441,289.06 and 136,728.71 is: 204,955.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,389.54 : 441,289.06 = 136,728.71 : x
  2. Step 2: Convert to fraction form
    294,389.54/441,289.06 = 136,728.71/x
  3. Step 3: Cross multiply
    294,389.54x = 441,289.06 × 136,728.71
  4. Step 4: Simplify right side
    294,389.54x = 60,336,883,910.91
  5. Step 5: Solve for x
    x = 60,336,883,910.91/294,389.54
  6. Step 6: Final answer
    x = 204,955.94

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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.