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Finding the Fourth Proportional to 132,806.80, 199,323.60 and 53,977.60

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Solution

The fourth proportional to 132,806.80, 199,323.60 and 53,977.60 is: 81,012.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,806.80 : 199,323.60 = 53,977.60 : x
  2. Step 2: Convert to fraction form
    132,806.80/199,323.60 = 53,977.60/x
  3. Step 3: Cross multiply
    132,806.80x = 199,323.60 × 53,977.60
  4. Step 4: Simplify right side
    132,806.80x = 10,759,009,551.36
  5. Step 5: Solve for x
    x = 10,759,009,551.36/132,806.80
  6. Step 6: Final answer
    x = 81,012.49

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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.