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Finding the Fourth Proportional to 114,172.80, 171,245.04 and 47,621.04

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Solution

The fourth proportional to 114,172.80, 171,245.04 and 47,621.04 is: 71,425.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,172.80 : 171,245.04 = 47,621.04 : x
  2. Step 2: Convert to fraction form
    114,172.80/171,245.04 = 47,621.04/x
  3. Step 3: Cross multiply
    114,172.80x = 171,245.04 × 47,621.04
  4. Step 4: Simplify right side
    114,172.80x = 8,154,866,899.64
  5. Step 5: Solve for x
    x = 8,154,866,899.64/114,172.80
  6. Step 6: Final answer
    x = 71,425.65

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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.