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Finding the Fourth Proportional to 355,112.14, 490,051.49 and 193,967.14

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Solution

The fourth proportional to 355,112.14, 490,051.49 and 193,967.14 is: 267,672.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,112.14 : 490,051.49 = 193,967.14 : x
  2. Step 2: Convert to fraction form
    355,112.14/490,051.49 = 193,967.14/x
  3. Step 3: Cross multiply
    355,112.14x = 490,051.49 × 193,967.14
  4. Step 4: Simplify right side
    355,112.14x = 95,053,885,968.04
  5. Step 5: Solve for x
    x = 95,053,885,968.04/355,112.14
  6. Step 6: Final answer
    x = 267,672.87

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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.