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Finding the Fourth Proportional to 98,383.09, 135,768.03 and 55,941.62

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Solution

The fourth proportional to 98,383.09, 135,768.03 and 55,941.62 is: 77,199.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,383.09 : 135,768.03 = 55,941.62 : x
  2. Step 2: Convert to fraction form
    98,383.09/135,768.03 = 55,941.62/x
  3. Step 3: Cross multiply
    98,383.09x = 135,768.03 × 55,941.62
  4. Step 4: Simplify right side
    98,383.09x = 7,595,083,542.41
  5. Step 5: Solve for x
    x = 7,595,083,542.41/98,383.09
  6. Step 6: Final answer
    x = 77,199.07

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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.