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Finding the Fourth Proportional to 300,521.44, 450,812.39 and 111,031.56

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Solution

The fourth proportional to 300,521.44, 450,812.39 and 111,031.56 is: 166,558.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,521.44 : 450,812.39 = 111,031.56 : x
  2. Step 2: Convert to fraction form
    300,521.44/450,812.39 = 111,031.56/x
  3. Step 3: Cross multiply
    300,521.44x = 450,812.39 × 111,031.56
  4. Step 4: Simplify right side
    300,521.44x = 50,054,402,373.87
  5. Step 5: Solve for x
    x = 50,054,402,373.87/300,521.44
  6. Step 6: Final answer
    x = 166,558.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.