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Finding the Fourth Proportional to 66,784.79, 100,226.18 and 53,794.01

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Solution

The fourth proportional to 66,784.79, 100,226.18 and 53,794.01 is: 80,730.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,784.79 : 100,226.18 = 53,794.01 : x
  2. Step 2: Convert to fraction form
    66,784.79/100,226.18 = 53,794.01/x
  3. Step 3: Cross multiply
    66,784.79x = 100,226.18 × 53,794.01
  4. Step 4: Simplify right side
    66,784.79x = 5,391,567,762.54
  5. Step 5: Solve for x
    x = 5,391,567,762.54/66,784.79
  6. Step 6: Final answer
    x = 80,730.48

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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.