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Finding the Fourth Proportional to 52,181.80, 78,186.30 and 44,405.80

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Solution

The fourth proportional to 52,181.80, 78,186.30 and 44,405.80 is: 66,535.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,181.80 : 78,186.30 = 44,405.80 : x
  2. Step 2: Convert to fraction form
    52,181.80/78,186.30 = 44,405.80/x
  3. Step 3: Cross multiply
    52,181.80x = 78,186.30 × 44,405.80
  4. Step 4: Simplify right side
    52,181.80x = 3,471,925,200.54
  5. Step 5: Solve for x
    x = 3,471,925,200.54/52,181.80
  6. Step 6: Final answer
    x = 66,535.18

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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.