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Finding the Fourth Proportional to 112,074.40, 168,141.30 and 48,867.40

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Solution

The fourth proportional to 112,074.40, 168,141.30 and 48,867.40 is: 73,314.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,074.40 : 168,141.30 = 48,867.40 : x
  2. Step 2: Convert to fraction form
    112,074.40/168,141.30 = 48,867.40/x
  3. Step 3: Cross multiply
    112,074.40x = 168,141.30 × 48,867.40
  4. Step 4: Simplify right side
    112,074.40x = 8,216,628,163.62
  5. Step 5: Solve for x
    x = 8,216,628,163.62/112,074.40
  6. Step 6: Final answer
    x = 73,314.05

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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.