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Finding the Fourth Proportional to 159,464.48, 220,059.96 and 87,842.84

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Solution

The fourth proportional to 159,464.48, 220,059.96 and 87,842.84 is: 121,222.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,464.48 : 220,059.96 = 87,842.84 : x
  2. Step 2: Convert to fraction form
    159,464.48/220,059.96 = 87,842.84/x
  3. Step 3: Cross multiply
    159,464.48x = 220,059.96 × 87,842.84
  4. Step 4: Simplify right side
    159,464.48x = 19,330,691,856.69
  5. Step 5: Solve for x
    x = 19,330,691,856.69/159,464.48
  6. Step 6: Final answer
    x = 121,222.56

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1.5x scale

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.