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Finding the Fourth Proportional to 166,978.50, 250,500.54 and 61,798.38

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Solution

The fourth proportional to 166,978.50, 250,500.54 and 61,798.38 is: 92,709.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,978.50 : 250,500.54 = 61,798.38 : x
  2. Step 2: Convert to fraction form
    166,978.50/250,500.54 = 61,798.38/x
  3. Step 3: Cross multiply
    166,978.50x = 250,500.54 × 61,798.38
  4. Step 4: Simplify right side
    166,978.50x = 15,480,527,561.13
  5. Step 5: Solve for x
    x = 15,480,527,561.13/166,978.50
  6. Step 6: Final answer
    x = 92,709.71

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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.