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Finding the Fourth Proportional to 114,026.96, 171,040.80 and 67,247

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Solution

The fourth proportional to 114,026.96, 171,040.80 and 67,247 is: 100,870.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,026.96 : 171,040.80 = 67,247 : x
  2. Step 2: Convert to fraction form
    114,026.96/171,040.80 = 67,247/x
  3. Step 3: Cross multiply
    114,026.96x = 171,040.80 × 67,247
  4. Step 4: Simplify right side
    114,026.96x = 11,501,980,677.60
  5. Step 5: Solve for x
    x = 11,501,980,677.60/114,026.96
  6. Step 6: Final answer
    x = 100,870.71

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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.