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Finding the Fourth Proportional to 112,491.20, 168,738.80 and 33,606.40

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Solution

The fourth proportional to 112,491.20, 168,738.80 and 33,606.40 is: 50,410.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,491.20 : 168,738.80 = 33,606.40 : x
  2. Step 2: Convert to fraction form
    112,491.20/168,738.80 = 33,606.40/x
  3. Step 3: Cross multiply
    112,491.20x = 168,738.80 × 33,606.40
  4. Step 4: Simplify right side
    112,491.20x = 5,670,703,608.32
  5. Step 5: Solve for x
    x = 5,670,703,608.32/112,491.20
  6. Step 6: Final answer
    x = 50,410.20

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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.