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Finding the Fourth Proportional to 73,000.80, 109,544.40 and 53,229.60

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Solution

The fourth proportional to 73,000.80, 109,544.40 and 53,229.60 is: 79,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,000.80 : 109,544.40 = 53,229.60 : x
  2. Step 2: Convert to fraction form
    73,000.80/109,544.40 = 53,229.60/x
  3. Step 3: Cross multiply
    73,000.80x = 109,544.40 × 53,229.60
  4. Step 4: Simplify right side
    73,000.80x = 5,831,004,594.24
  5. Step 5: Solve for x
    x = 5,831,004,594.24/73,000.80
  6. Step 6: Final answer
    x = 79,875.90

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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.