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Finding the Fourth Proportional to 71,187.37, 98,244.44 and 39,362.47

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Solution

The fourth proportional to 71,187.37, 98,244.44 and 39,362.47 is: 54,323.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,187.37 : 98,244.44 = 39,362.47 : x
  2. Step 2: Convert to fraction form
    71,187.37/98,244.44 = 39,362.47/x
  3. Step 3: Cross multiply
    71,187.37x = 98,244.44 × 39,362.47
  4. Step 4: Simplify right side
    71,187.37x = 3,867,143,822.17
  5. Step 5: Solve for x
    x = 3,867,143,822.17/71,187.37
  6. Step 6: Final answer
    x = 54,323.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.