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Finding the Fourth Proportional to 166,911.59, 250,388.60 and 53,018.76

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Solution

The fourth proportional to 166,911.59, 250,388.60 and 53,018.76 is: 79,534.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,911.59 : 250,388.60 = 53,018.76 : x
  2. Step 2: Convert to fraction form
    166,911.59/250,388.60 = 53,018.76/x
  3. Step 3: Cross multiply
    166,911.59x = 250,388.60 × 53,018.76
  4. Step 4: Simplify right side
    166,911.59x = 13,275,293,426.38
  5. Step 5: Solve for x
    x = 13,275,293,426.38/166,911.59
  6. Step 6: Final answer
    x = 79,534.88

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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.