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Finding the Fourth Proportional to 114,487.42, 171,696.11 and 79,175.67

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Solution

The fourth proportional to 114,487.42, 171,696.11 and 79,175.67 is: 118,739.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,487.42 : 171,696.11 = 79,175.67 : x
  2. Step 2: Convert to fraction form
    114,487.42/171,696.11 = 79,175.67/x
  3. Step 3: Cross multiply
    114,487.42x = 171,696.11 × 79,175.67
  4. Step 4: Simplify right side
    114,487.42x = 13,594,154,545.64
  5. Step 5: Solve for x
    x = 13,594,154,545.64/114,487.42
  6. Step 6: Final answer
    x = 118,739.29

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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.