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Finding the Fourth Proportional to 141,059.66, 194,662.29 and 80,631.59

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Solution

The fourth proportional to 141,059.66, 194,662.29 and 80,631.59 is: 111,271.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,059.66 : 194,662.29 = 80,631.59 : x
  2. Step 2: Convert to fraction form
    141,059.66/194,662.29 = 80,631.59/x
  3. Step 3: Cross multiply
    141,059.66x = 194,662.29 × 80,631.59
  4. Step 4: Simplify right side
    141,059.66x = 15,695,930,442.40
  5. Step 5: Solve for x
    x = 15,695,930,442.40/141,059.66
  6. Step 6: Final answer
    x = 111,271.58

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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.