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Finding the Fourth Proportional to 71,181.25, 106,836.27 and 37,929.40

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Solution

The fourth proportional to 71,181.25, 106,836.27 and 37,929.40 is: 56,928.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,181.25 : 106,836.27 = 37,929.40 : x
  2. Step 2: Convert to fraction form
    71,181.25/106,836.27 = 37,929.40/x
  3. Step 3: Cross multiply
    71,181.25x = 106,836.27 × 37,929.40
  4. Step 4: Simplify right side
    71,181.25x = 4,052,235,619.34
  5. Step 5: Solve for x
    x = 4,052,235,619.34/71,181.25
  6. Step 6: Final answer
    x = 56,928.41

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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.