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Finding the Fourth Proportional to 198,783.54, 298,141.83 and 56,618.82

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Solution

The fourth proportional to 198,783.54, 298,141.83 and 56,618.82 is: 84,918.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,783.54 : 298,141.83 = 56,618.82 : x
  2. Step 2: Convert to fraction form
    198,783.54/298,141.83 = 56,618.82/x
  3. Step 3: Cross multiply
    198,783.54x = 298,141.83 × 56,618.82
  4. Step 4: Simplify right side
    198,783.54x = 16,880,438,607.24
  5. Step 5: Solve for x
    x = 16,880,438,607.24/198,783.54
  6. Step 6: Final answer
    x = 84,918.69

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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.