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Finding the Fourth Proportional to 73,024.80, 109,580.40 and 53,253.60

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Solution

The fourth proportional to 73,024.80, 109,580.40 and 53,253.60 is: 79,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,024.80 : 109,580.40 = 53,253.60 : x
  2. Step 2: Convert to fraction form
    73,024.80/109,580.40 = 53,253.60/x
  3. Step 3: Cross multiply
    73,024.80x = 109,580.40 × 53,253.60
  4. Step 4: Simplify right side
    73,024.80x = 5,835,550,789.44
  5. Step 5: Solve for x
    x = 5,835,550,789.44/73,024.80
  6. Step 6: Final answer
    x = 79,911.90

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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.