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Finding the Fourth Proportional to 159,778.73, 220,455.33 and 97,673.54

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Solution

The fourth proportional to 159,778.73, 220,455.33 and 97,673.54 is: 134,765.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,778.73 : 220,455.33 = 97,673.54 : x
  2. Step 2: Convert to fraction form
    159,778.73/220,455.33 = 97,673.54/x
  3. Step 3: Cross multiply
    159,778.73x = 220,455.33 × 97,673.54
  4. Step 4: Simplify right side
    159,778.73x = 21,532,652,492.97
  5. Step 5: Solve for x
    x = 21,532,652,492.97/159,778.73
  6. Step 6: Final answer
    x = 134,765.45

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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.