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Finding the Fourth Proportional to 112,386.80, 168,558.60 and 33,503.60

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Solution

The fourth proportional to 112,386.80, 168,558.60 and 33,503.60 is: 50,248.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,386.80 : 168,558.60 = 33,503.60 : x
  2. Step 2: Convert to fraction form
    112,386.80/168,558.60 = 33,503.60/x
  3. Step 3: Cross multiply
    112,386.80x = 168,558.60 × 33,503.60
  4. Step 4: Simplify right side
    112,386.80x = 5,647,319,910.96
  5. Step 5: Solve for x
    x = 5,647,319,910.96/112,386.80
  6. Step 6: Final answer
    x = 50,248.96

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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.