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Finding the Fourth Proportional to 110,399.54, 165,485.71 and 43,886.80

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Solution

The fourth proportional to 110,399.54, 165,485.71 and 43,886.80 is: 65,785.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,399.54 : 165,485.71 = 43,886.80 : x
  2. Step 2: Convert to fraction form
    110,399.54/165,485.71 = 43,886.80/x
  3. Step 3: Cross multiply
    110,399.54x = 165,485.71 × 43,886.80
  4. Step 4: Simplify right side
    110,399.54x = 7,262,637,465.05
  5. Step 5: Solve for x
    x = 7,262,637,465.05/110,399.54
  6. Step 6: Final answer
    x = 65,785.03

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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.