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Finding the Fourth Proportional to 129,354.44, 194,055.17 and 53,453.17

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Solution

The fourth proportional to 129,354.44, 194,055.17 and 53,453.17 is: 80,189.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,354.44 : 194,055.17 = 53,453.17 : x
  2. Step 2: Convert to fraction form
    129,354.44/194,055.17 = 53,453.17/x
  3. Step 3: Cross multiply
    129,354.44x = 194,055.17 × 53,453.17
  4. Step 4: Simplify right side
    129,354.44x = 10,372,863,025.47
  5. Step 5: Solve for x
    x = 10,372,863,025.47/129,354.44
  6. Step 6: Final answer
    x = 80,189.46

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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.