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Finding the Fourth Proportional to 129,794.40, 194,691.60 and 70,599.60

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Solution

The fourth proportional to 129,794.40, 194,691.60 and 70,599.60 is: 105,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,794.40 : 194,691.60 = 70,599.60 : x
  2. Step 2: Convert to fraction form
    129,794.40/194,691.60 = 70,599.60/x
  3. Step 3: Cross multiply
    129,794.40x = 194,691.60 × 70,599.60
  4. Step 4: Simplify right side
    129,794.40x = 13,745,149,083.36
  5. Step 5: Solve for x
    x = 13,745,149,083.36/129,794.40
  6. Step 6: Final answer
    x = 105,899.40

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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.