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Finding the Fourth Proportional to 129,784.20, 194,676.30 and 94,354.80

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Solution

The fourth proportional to 129,784.20, 194,676.30 and 94,354.80 is: 141,532.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,784.20 : 194,676.30 = 94,354.80 : x
  2. Step 2: Convert to fraction form
    129,784.20/194,676.30 = 94,354.80/x
  3. Step 3: Cross multiply
    129,784.20x = 194,676.30 × 94,354.80
  4. Step 4: Simplify right side
    129,784.20x = 18,368,643,351.24
  5. Step 5: Solve for x
    x = 18,368,643,351.24/129,784.20
  6. Step 6: Final answer
    x = 141,532.20

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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.