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Finding the Fourth Proportional to 159,779.73, 220,456.71 and 97,674.54

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Solution

The fourth proportional to 159,779.73, 220,456.71 and 97,674.54 is: 134,766.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,779.73 : 220,456.71 = 97,674.54 : x
  2. Step 2: Convert to fraction form
    159,779.73/220,456.71 = 97,674.54/x
  3. Step 3: Cross multiply
    159,779.73x = 220,456.71 × 97,674.54
  4. Step 4: Simplify right side
    159,779.73x = 21,533,007,739.16
  5. Step 5: Solve for x
    x = 21,533,007,739.16/159,779.73
  6. Step 6: Final answer
    x = 134,766.83

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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.