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Finding the Fourth Proportional to 112,652.88, 168,975.90 and 36,751.20

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Solution

The fourth proportional to 112,652.88, 168,975.90 and 36,751.20 is: 55,125.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,652.88 : 168,975.90 = 36,751.20 : x
  2. Step 2: Convert to fraction form
    112,652.88/168,975.90 = 36,751.20/x
  3. Step 3: Cross multiply
    112,652.88x = 168,975.90 × 36,751.20
  4. Step 4: Simplify right side
    112,652.88x = 6,210,067,096.08
  5. Step 5: Solve for x
    x = 6,210,067,096.08/112,652.88
  6. Step 6: Final answer
    x = 55,125.68

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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.