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Finding the Fourth Proportional to 159,212.39, 219,713.41 and 87,596.84

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Solution

The fourth proportional to 159,212.39, 219,713.41 and 87,596.84 is: 120,883.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,212.39 : 219,713.41 = 87,596.84 : x
  2. Step 2: Convert to fraction form
    159,212.39/219,713.41 = 87,596.84/x
  3. Step 3: Cross multiply
    159,212.39x = 219,713.41 × 87,596.84
  4. Step 4: Simplify right side
    159,212.39x = 19,246,201,080.40
  5. Step 5: Solve for x
    x = 19,246,201,080.40/159,212.39
  6. Step 6: Final answer
    x = 120,883.82

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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.