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Finding the Fourth Proportional to 112,491.40, 168,761.40 and 33,613.60

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Solution

The fourth proportional to 112,491.40, 168,761.40 and 33,613.60 is: 50,427.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,491.40 : 168,761.40 = 33,613.60 : x
  2. Step 2: Convert to fraction form
    112,491.40/168,761.40 = 33,613.60/x
  3. Step 3: Cross multiply
    112,491.40x = 168,761.40 × 33,613.60
  4. Step 4: Simplify right side
    112,491.40x = 5,672,678,195.04
  5. Step 5: Solve for x
    x = 5,672,678,195.04/112,491.40
  6. Step 6: Final answer
    x = 50,427.66

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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.