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Finding the Fourth Proportional to 114,399.88, 171,557.72 and 39,500.80

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Solution

The fourth proportional to 114,399.88, 171,557.72 and 39,500.80 is: 59,236.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,399.88 : 171,557.72 = 39,500.80 : x
  2. Step 2: Convert to fraction form
    114,399.88/171,557.72 = 39,500.80/x
  3. Step 3: Cross multiply
    114,399.88x = 171,557.72 × 39,500.80
  4. Step 4: Simplify right side
    114,399.88x = 6,776,667,186.18
  5. Step 5: Solve for x
    x = 6,776,667,186.18/114,399.88
  6. Step 6: Final answer
    x = 59,236.66

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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.