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Finding the Fourth Proportional to 69,937.80, 104,825.34 and 39,973.02

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Solution

The fourth proportional to 69,937.80, 104,825.34 and 39,973.02 is: 59,913.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,937.80 : 104,825.34 = 39,973.02 : x
  2. Step 2: Convert to fraction form
    69,937.80/104,825.34 = 39,973.02/x
  3. Step 3: Cross multiply
    69,937.80x = 104,825.34 × 39,973.02
  4. Step 4: Simplify right side
    69,937.80x = 4,190,185,412.33
  5. Step 5: Solve for x
    x = 4,190,185,412.33/69,937.80
  6. Step 6: Final answer
    x = 59,913.03

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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.