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Finding the Fourth Proportional to 70,584.80, 105,704.40 and 33,605.60

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Solution

The fourth proportional to 70,584.80, 105,704.40 and 33,605.60 is: 50,326.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,584.80 : 105,704.40 = 33,605.60 : x
  2. Step 2: Convert to fraction form
    70,584.80/105,704.40 = 33,605.60/x
  3. Step 3: Cross multiply
    70,584.80x = 105,704.40 × 33,605.60
  4. Step 4: Simplify right side
    70,584.80x = 3,552,259,784.64
  5. Step 5: Solve for x
    x = 3,552,259,784.64/70,584.80
  6. Step 6: Final answer
    x = 50,326.13

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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.