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Finding the Fourth Proportional to 101,806.98, 140,490.96 and 55,866.48

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Solution

The fourth proportional to 101,806.98, 140,490.96 and 55,866.48 is: 77,094.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,806.98 : 140,490.96 = 55,866.48 : x
  2. Step 2: Convert to fraction form
    101,806.98/140,490.96 = 55,866.48/x
  3. Step 3: Cross multiply
    101,806.98x = 140,490.96 × 55,866.48
  4. Step 4: Simplify right side
    101,806.98x = 7,848,735,407.02
  5. Step 5: Solve for x
    x = 7,848,735,407.02/101,806.98
  6. Step 6: Final answer
    x = 77,094.28

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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.