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Finding the Fourth Proportional to 116,163.20, 174,014.40 and 69,276.80

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Solution

The fourth proportional to 116,163.20, 174,014.40 and 69,276.80 is: 103,777.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,163.20 : 174,014.40 = 69,276.80 : x
  2. Step 2: Convert to fraction form
    116,163.20/174,014.40 = 69,276.80/x
  3. Step 3: Cross multiply
    116,163.20x = 174,014.40 × 69,276.80
  4. Step 4: Simplify right side
    116,163.20x = 12,055,160,785.92
  5. Step 5: Solve for x
    x = 12,055,160,785.92/116,163.20
  6. Step 6: Final answer
    x = 103,777.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.