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Finding the Fourth Proportional to 111,454.96, 167,178.12 and 28,351.12

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Solution

The fourth proportional to 111,454.96, 167,178.12 and 28,351.12 is: 42,525.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,454.96 : 167,178.12 = 28,351.12 : x
  2. Step 2: Convert to fraction form
    111,454.96/167,178.12 = 28,351.12/x
  3. Step 3: Cross multiply
    111,454.96x = 167,178.12 × 28,351.12
  4. Step 4: Simplify right side
    111,454.96x = 4,739,686,941.49
  5. Step 5: Solve for x
    x = 4,739,686,941.49/111,454.96
  6. Step 6: Final answer
    x = 42,525.58

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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.