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Finding the Fourth Proportional to 193,373.68, 290,074.48 and 80,940.76

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Solution

The fourth proportional to 193,373.68, 290,074.48 and 80,940.76 is: 121,416.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,373.68 : 290,074.48 = 80,940.76 : x
  2. Step 2: Convert to fraction form
    193,373.68/290,074.48 = 80,940.76/x
  3. Step 3: Cross multiply
    193,373.68x = 290,074.48 × 80,940.76
  4. Step 4: Simplify right side
    193,373.68x = 23,478,848,867.80
  5. Step 5: Solve for x
    x = 23,478,848,867.80/193,373.68
  6. Step 6: Final answer
    x = 121,416.98

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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.