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Finding the Fourth Proportional to 89,181.48, 133,772.28 and 83,276.60

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Solution

The fourth proportional to 89,181.48, 133,772.28 and 83,276.60 is: 124,914.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,181.48 : 133,772.28 = 83,276.60 : x
  2. Step 2: Convert to fraction form
    89,181.48/133,772.28 = 83,276.60/x
  3. Step 3: Cross multiply
    89,181.48x = 133,772.28 × 83,276.60
  4. Step 4: Simplify right side
    89,181.48x = 11,140,100,652.65
  5. Step 5: Solve for x
    x = 11,140,100,652.65/89,181.48
  6. Step 6: Final answer
    x = 124,914.96

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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.