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Finding the Fourth Proportional to 101,896.60, 140,626.20 and 56,583.40

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Solution

The fourth proportional to 101,896.60, 140,626.20 and 56,583.40 is: 78,090.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,896.60 : 140,626.20 = 56,583.40 : x
  2. Step 2: Convert to fraction form
    101,896.60/140,626.20 = 56,583.40/x
  3. Step 3: Cross multiply
    101,896.60x = 140,626.20 × 56,583.40
  4. Step 4: Simplify right side
    101,896.60x = 7,957,108,525.08
  5. Step 5: Solve for x
    x = 7,957,108,525.08/101,896.60
  6. Step 6: Final answer
    x = 78,090.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.