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Finding the Fourth Proportional to 52,643.80, 78,879.30 and 44,867.80

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Solution

The fourth proportional to 52,643.80, 78,879.30 and 44,867.80 is: 67,228.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,643.80 : 78,879.30 = 44,867.80 : x
  2. Step 2: Convert to fraction form
    52,643.80/78,879.30 = 44,867.80/x
  3. Step 3: Cross multiply
    52,643.80x = 78,879.30 × 44,867.80
  4. Step 4: Simplify right side
    52,643.80x = 3,539,140,656.54
  5. Step 5: Solve for x
    x = 3,539,140,656.54/52,643.80
  6. Step 6: Final answer
    x = 67,228.06

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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.