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Finding the Fourth Proportional to 141,295.92, 194,987.76 and 80,866.24

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Solution

The fourth proportional to 141,295.92, 194,987.76 and 80,866.24 is: 111,595.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,295.92 : 194,987.76 = 80,866.24 : x
  2. Step 2: Convert to fraction form
    141,295.92/194,987.76 = 80,866.24/x
  3. Step 3: Cross multiply
    141,295.92x = 194,987.76 × 80,866.24
  4. Step 4: Simplify right side
    141,295.92x = 15,767,926,997.22
  5. Step 5: Solve for x
    x = 15,767,926,997.22/141,295.92
  6. Step 6: Final answer
    x = 111,595.06

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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.