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Finding the Fourth Proportional to 114,575.70, 171,956.19 and 79,015.38

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Solution

The fourth proportional to 114,575.70, 171,956.19 and 79,015.38 is: 118,586.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,575.70 : 171,956.19 = 79,015.38 : x
  2. Step 2: Convert to fraction form
    114,575.70/171,956.19 = 79,015.38/x
  3. Step 3: Cross multiply
    114,575.70x = 171,956.19 × 79,015.38
  4. Step 4: Simplify right side
    114,575.70x = 13,587,183,696.20
  5. Step 5: Solve for x
    x = 13,587,183,696.20/114,575.70
  6. Step 6: Final answer
    x = 118,586.96

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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.