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Finding the Fourth Proportional to 111,992.40, 168,053.40 and 41,878.80

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Solution

The fourth proportional to 111,992.40, 168,053.40 and 41,878.80 is: 62,842.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,992.40 : 168,053.40 = 41,878.80 : x
  2. Step 2: Convert to fraction form
    111,992.40/168,053.40 = 41,878.80/x
  3. Step 3: Cross multiply
    111,992.40x = 168,053.40 × 41,878.80
  4. Step 4: Simplify right side
    111,992.40x = 7,037,874,727.92
  5. Step 5: Solve for x
    x = 7,037,874,727.92/111,992.40
  6. Step 6: Final answer
    x = 62,842.43

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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.