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Finding the Fourth Proportional to 114,130.25, 171,049.80 and 54,158.61

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Solution

The fourth proportional to 114,130.25, 171,049.80 and 54,158.61 is: 81,168.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,130.25 : 171,049.80 = 54,158.61 : x
  2. Step 2: Convert to fraction form
    114,130.25/171,049.80 = 54,158.61/x
  3. Step 3: Cross multiply
    114,130.25x = 171,049.80 × 54,158.61
  4. Step 4: Simplify right side
    114,130.25x = 9,263,819,408.78
  5. Step 5: Solve for x
    x = 9,263,819,408.78/114,130.25
  6. Step 6: Final answer
    x = 81,168.84

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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.