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Finding the Fourth Proportional to 49,812.80, 74,719.20 and 44,801.60

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Solution

The fourth proportional to 49,812.80, 74,719.20 and 44,801.60 is: 67,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,812.80 : 74,719.20 = 44,801.60 : x
  2. Step 2: Convert to fraction form
    49,812.80/74,719.20 = 44,801.60/x
  3. Step 3: Cross multiply
    49,812.80x = 74,719.20 × 44,801.60
  4. Step 4: Simplify right side
    49,812.80x = 3,347,539,710.72
  5. Step 5: Solve for x
    x = 3,347,539,710.72/49,812.80
  6. Step 6: Final answer
    x = 67,202.40

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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.