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Finding the Fourth Proportional to 111,574.26, 167,361.40 and 28,468.26

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Solution

The fourth proportional to 111,574.26, 167,361.40 and 28,468.26 is: 42,702.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,574.26 : 167,361.40 = 28,468.26 : x
  2. Step 2: Convert to fraction form
    111,574.26/167,361.40 = 28,468.26/x
  3. Step 3: Cross multiply
    111,574.26x = 167,361.40 × 28,468.26
  4. Step 4: Simplify right side
    111,574.26x = 4,764,487,849.16
  5. Step 5: Solve for x
    x = 4,764,487,849.16/111,574.26
  6. Step 6: Final answer
    x = 42,702.39

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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.