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Finding the Fourth Proportional to 110,762.18, 166,135.21 and 43,281.58

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Solution

The fourth proportional to 110,762.18, 166,135.21 and 43,281.58 is: 64,919.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,762.18 : 166,135.21 = 43,281.58 : x
  2. Step 2: Convert to fraction form
    110,762.18/166,135.21 = 43,281.58/x
  3. Step 3: Cross multiply
    110,762.18x = 166,135.21 × 43,281.58
  4. Step 4: Simplify right side
    110,762.18x = 7,190,593,967.09
  5. Step 5: Solve for x
    x = 7,190,593,967.09/110,762.18
  6. Step 6: Final answer
    x = 64,919.22

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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.