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Finding the Fourth Proportional to 196,611.68, 271,323.96 and 107,187.68

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Solution

The fourth proportional to 196,611.68, 271,323.96 and 107,187.68 is: 147,918.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,611.68 : 271,323.96 = 107,187.68 : x
  2. Step 2: Convert to fraction form
    196,611.68/271,323.96 = 107,187.68/x
  3. Step 3: Cross multiply
    196,611.68x = 271,323.96 × 107,187.68
  4. Step 4: Simplify right side
    196,611.68x = 29,082,585,800.81
  5. Step 5: Solve for x
    x = 29,082,585,800.81/196,611.68
  6. Step 6: Final answer
    x = 147,918.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.