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Finding the Fourth Proportional to 86,365.44, 119,186.64 and 48,638.88

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Solution

The fourth proportional to 86,365.44, 119,186.64 and 48,638.88 is: 67,122.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,365.44 : 119,186.64 = 48,638.88 : x
  2. Step 2: Convert to fraction form
    86,365.44/119,186.64 = 48,638.88/x
  3. Step 3: Cross multiply
    86,365.44x = 119,186.64 × 48,638.88
  4. Step 4: Simplify right side
    86,365.44x = 5,797,104,680.56
  5. Step 5: Solve for x
    x = 5,797,104,680.56/86,365.44
  6. Step 6: Final answer
    x = 67,122.97

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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.