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Finding the Fourth Proportional to 196,090.80, 294,136.20 and 191,716.80

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Solution

The fourth proportional to 196,090.80, 294,136.20 and 191,716.80 is: 287,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,090.80 : 294,136.20 = 191,716.80 : x
  2. Step 2: Convert to fraction form
    196,090.80/294,136.20 = 191,716.80/x
  3. Step 3: Cross multiply
    196,090.80x = 294,136.20 × 191,716.80
  4. Step 4: Simplify right side
    196,090.80x = 56,390,851,028.16
  5. Step 5: Solve for x
    x = 56,390,851,028.16/196,090.80
  6. Step 6: Final answer
    x = 287,575.20

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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.