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Finding the Fourth Proportional to 110,669.80, 165,903.90 and 40,532.20

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Solution

The fourth proportional to 110,669.80, 165,903.90 and 40,532.20 is: 60,761.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,669.80 : 165,903.90 = 40,532.20 : x
  2. Step 2: Convert to fraction form
    110,669.80/165,903.90 = 40,532.20/x
  3. Step 3: Cross multiply
    110,669.80x = 165,903.90 × 40,532.20
  4. Step 4: Simplify right side
    110,669.80x = 6,724,450,055.58
  5. Step 5: Solve for x
    x = 6,724,450,055.58/110,669.80
  6. Step 6: Final answer
    x = 60,761.38

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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.