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Finding the Fourth Proportional to 217,940.48, 326,929.54 and 60,168.96

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Solution

The fourth proportional to 217,940.48, 326,929.54 and 60,168.96 is: 90,258.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,940.48 : 326,929.54 = 60,168.96 : x
  2. Step 2: Convert to fraction form
    217,940.48/326,929.54 = 60,168.96/x
  3. Step 3: Cross multiply
    217,940.48x = 326,929.54 × 60,168.96
  4. Step 4: Simplify right side
    217,940.48x = 19,671,010,415.08
  5. Step 5: Solve for x
    x = 19,671,010,415.08/217,940.48
  6. Step 6: Final answer
    x = 90,258.64

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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.