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Finding the Fourth Proportional to 110,941.60, 166,412.40 and 93,380.80

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Solution

The fourth proportional to 110,941.60, 166,412.40 and 93,380.80 is: 140,071.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,941.60 : 166,412.40 = 93,380.80 : x
  2. Step 2: Convert to fraction form
    110,941.60/166,412.40 = 93,380.80/x
  3. Step 3: Cross multiply
    110,941.60x = 166,412.40 × 93,380.80
  4. Step 4: Simplify right side
    110,941.60x = 15,539,723,041.92
  5. Step 5: Solve for x
    x = 15,539,723,041.92/110,941.60
  6. Step 6: Final answer
    x = 140,071.20

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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.