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Finding the Fourth Proportional to 114,614.70, 171,922.05 and 102,561.90

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Solution

The fourth proportional to 114,614.70, 171,922.05 and 102,561.90 is: 153,842.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,614.70 : 171,922.05 = 102,561.90 : x
  2. Step 2: Convert to fraction form
    114,614.70/171,922.05 = 102,561.90/x
  3. Step 3: Cross multiply
    114,614.70x = 171,922.05 × 102,561.90
  4. Step 4: Simplify right side
    114,614.70x = 17,632,652,099.90
  5. Step 5: Solve for x
    x = 17,632,652,099.90/114,614.70
  6. Step 6: Final answer
    x = 153,842.85

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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.