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Finding the Fourth Proportional to 69,573.70, 104,173.57 and 57,242.53

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Solution

The fourth proportional to 69,573.70, 104,173.57 and 57,242.53 is: 85,709.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,573.70 : 104,173.57 = 57,242.53 : x
  2. Step 2: Convert to fraction form
    69,573.70/104,173.57 = 57,242.53/x
  3. Step 3: Cross multiply
    69,573.70x = 104,173.57 × 57,242.53
  4. Step 4: Simplify right side
    69,573.70x = 5,963,158,705.93
  5. Step 5: Solve for x
    x = 5,963,158,705.93/69,573.70
  6. Step 6: Final answer
    x = 85,709.96

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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.