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Finding the Fourth Proportional to 114,539.56, 171,768.18 and 39,639.38

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Solution

The fourth proportional to 114,539.56, 171,768.18 and 39,639.38 is: 59,444.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,539.56 : 171,768.18 = 39,639.38 : x
  2. Step 2: Convert to fraction form
    114,539.56/171,768.18 = 39,639.38/x
  3. Step 3: Cross multiply
    114,539.56x = 171,768.18 × 39,639.38
  4. Step 4: Simplify right side
    114,539.56x = 6,808,784,158.93
  5. Step 5: Solve for x
    x = 6,808,784,158.93/114,539.56
  6. Step 6: Final answer
    x = 59,444.83

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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.