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Finding the Fourth Proportional to 111,979.90, 168,034.65 and 41,866.30

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Solution

The fourth proportional to 111,979.90, 168,034.65 and 41,866.30 is: 62,823.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,979.90 : 168,034.65 = 41,866.30 : x
  2. Step 2: Convert to fraction form
    111,979.90/168,034.65 = 41,866.30/x
  3. Step 3: Cross multiply
    111,979.90x = 168,034.65 × 41,866.30
  4. Step 4: Simplify right side
    111,979.90x = 7,034,989,067.30
  5. Step 5: Solve for x
    x = 7,034,989,067.30/111,979.90
  6. Step 6: Final answer
    x = 62,823.68

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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.