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Finding the Fourth Proportional to 166,728.52, 250,131.78 and 48,402.12

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Solution

The fourth proportional to 166,728.52, 250,131.78 and 48,402.12 is: 72,614.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,728.52 : 250,131.78 = 48,402.12 : x
  2. Step 2: Convert to fraction form
    166,728.52/250,131.78 = 48,402.12/x
  3. Step 3: Cross multiply
    166,728.52x = 250,131.78 × 48,402.12
  4. Step 4: Simplify right side
    166,728.52x = 12,106,908,431.37
  5. Step 5: Solve for x
    x = 12,106,908,431.37/166,728.52
  6. Step 6: Final answer
    x = 72,614.50

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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.