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Finding the Fourth Proportional to 116,485.60, 174,577.20 and 54,023.20

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Solution

The fourth proportional to 116,485.60, 174,577.20 and 54,023.20 is: 80,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,485.60 : 174,577.20 = 54,023.20 : x
  2. Step 2: Convert to fraction form
    116,485.60/174,577.20 = 54,023.20/x
  3. Step 3: Cross multiply
    116,485.60x = 174,577.20 × 54,023.20
  4. Step 4: Simplify right side
    116,485.60x = 9,431,218,991.04
  5. Step 5: Solve for x
    x = 9,431,218,991.04/116,485.60
  6. Step 6: Final answer
    x = 80,964.68

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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.