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Finding the Fourth Proportional to 111,589.92, 167,389.44 and 28,486.08

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Solution

The fourth proportional to 111,589.92, 167,389.44 and 28,486.08 is: 42,730.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,589.92 : 167,389.44 = 28,486.08 : x
  2. Step 2: Convert to fraction form
    111,589.92/167,389.44 = 28,486.08/x
  3. Step 3: Cross multiply
    111,589.92x = 167,389.44 × 28,486.08
  4. Step 4: Simplify right side
    111,589.92x = 4,768,268,979.00
  5. Step 5: Solve for x
    x = 4,768,268,979.00/111,589.92
  6. Step 6: Final answer
    x = 42,730.28

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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.