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Finding the Fourth Proportional to 112,007.60, 168,049.80 and 49,722.80

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Solution

The fourth proportional to 112,007.60, 168,049.80 and 49,722.80 is: 74,601.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,007.60 : 168,049.80 = 49,722.80 : x
  2. Step 2: Convert to fraction form
    112,007.60/168,049.80 = 49,722.80/x
  3. Step 3: Cross multiply
    112,007.60x = 168,049.80 × 49,722.80
  4. Step 4: Simplify right side
    112,007.60x = 8,355,906,595.44
  5. Step 5: Solve for x
    x = 8,355,906,595.44/112,007.60
  6. Step 6: Final answer
    x = 74,601.25

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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.