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Finding the Fourth Proportional to 111,643.12, 167,464.44 and 28,536.88

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Solution

The fourth proportional to 111,643.12, 167,464.44 and 28,536.88 is: 42,805.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,643.12 : 167,464.44 = 28,536.88 : x
  2. Step 2: Convert to fraction form
    111,643.12/167,464.44 = 28,536.88/x
  3. Step 3: Cross multiply
    111,643.12x = 167,464.44 × 28,536.88
  4. Step 4: Simplify right side
    111,643.12x = 4,778,912,628.55
  5. Step 5: Solve for x
    x = 4,778,912,628.55/111,643.12
  6. Step 6: Final answer
    x = 42,805.26

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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.