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Finding the Fourth Proportional to 111,998.04, 167,995.74 and 45,422.28

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Solution

The fourth proportional to 111,998.04, 167,995.74 and 45,422.28 is: 68,132.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,998.04 : 167,995.74 = 45,422.28 : x
  2. Step 2: Convert to fraction form
    111,998.04/167,995.74 = 45,422.28/x
  3. Step 3: Cross multiply
    111,998.04x = 167,995.74 × 45,422.28
  4. Step 4: Simplify right side
    111,998.04x = 7,630,749,541.09
  5. Step 5: Solve for x
    x = 7,630,749,541.09/111,998.04
  6. Step 6: Final answer
    x = 68,132.88

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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.