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Finding the Fourth Proportional to 112,498.40, 168,771.90 and 33,620.60

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Solution

The fourth proportional to 112,498.40, 168,771.90 and 33,620.60 is: 50,438.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,498.40 : 168,771.90 = 33,620.60 : x
  2. Step 2: Convert to fraction form
    112,498.40/168,771.90 = 33,620.60/x
  3. Step 3: Cross multiply
    112,498.40x = 168,771.90 × 33,620.60
  4. Step 4: Simplify right side
    112,498.40x = 5,674,212,541.14
  5. Step 5: Solve for x
    x = 5,674,212,541.14/112,498.40
  6. Step 6: Final answer
    x = 50,438.16

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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.