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Finding the Fourth Proportional to 193,485.22, 290,310.99 and 100,056.58

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Solution

The fourth proportional to 193,485.22, 290,310.99 and 100,056.58 is: 150,127.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,485.22 : 290,310.99 = 100,056.58 : x
  2. Step 2: Convert to fraction form
    193,485.22/290,310.99 = 100,056.58/x
  3. Step 3: Cross multiply
    193,485.22x = 290,310.99 × 100,056.58
  4. Step 4: Simplify right side
    193,485.22x = 29,047,524,795.81
  5. Step 5: Solve for x
    x = 29,047,524,795.81/193,485.22
  6. Step 6: Final answer
    x = 150,127.87

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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.