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Finding the Fourth Proportional to 303,940.18, 456,041.49 and 163,670.86

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Solution

The fourth proportional to 303,940.18, 456,041.49 and 163,670.86 is: 245,576.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,940.18 : 456,041.49 = 163,670.86 : x
  2. Step 2: Convert to fraction form
    303,940.18/456,041.49 = 163,670.86/x
  3. Step 3: Cross multiply
    303,940.18x = 456,041.49 × 163,670.86
  4. Step 4: Simplify right side
    303,940.18x = 74,640,702,863.98
  5. Step 5: Solve for x
    x = 74,640,702,863.98/303,940.18
  6. Step 6: Final answer
    x = 245,576.95

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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.