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Finding the Fourth Proportional to 93,866.12, 140,742.41 and 36,871.80

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Solution

The fourth proportional to 93,866.12, 140,742.41 and 36,871.80 is: 55,285.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,866.12 : 140,742.41 = 36,871.80 : x
  2. Step 2: Convert to fraction form
    93,866.12/140,742.41 = 36,871.80/x
  3. Step 3: Cross multiply
    93,866.12x = 140,742.41 × 36,871.80
  4. Step 4: Simplify right side
    93,866.12x = 5,189,425,488.30
  5. Step 5: Solve for x
    x = 5,189,425,488.30/93,866.12
  6. Step 6: Final answer
    x = 55,285.39

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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.