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Finding the Fourth Proportional to 159,596.70, 220,241.06 and 87,975.18

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Solution

The fourth proportional to 159,596.70, 220,241.06 and 87,975.18 is: 121,404.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,596.70 : 220,241.06 = 87,975.18 : x
  2. Step 2: Convert to fraction form
    159,596.70/220,241.06 = 87,975.18/x
  3. Step 3: Cross multiply
    159,596.70x = 220,241.06 × 87,975.18
  4. Step 4: Simplify right side
    159,596.70x = 19,375,746,786.92
  5. Step 5: Solve for x
    x = 19,375,746,786.92/159,596.70
  6. Step 6: Final answer
    x = 121,404.44

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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.