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Finding the Fourth Proportional to 93,437.20, 140,112.60 and 40,819.60

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Solution

The fourth proportional to 93,437.20, 140,112.60 and 40,819.60 is: 61,210.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,437.20 : 140,112.60 = 40,819.60 : x
  2. Step 2: Convert to fraction form
    93,437.20/140,112.60 = 40,819.60/x
  3. Step 3: Cross multiply
    93,437.20x = 140,112.60 × 40,819.60
  4. Step 4: Simplify right side
    93,437.20x = 5,719,340,286.96
  5. Step 5: Solve for x
    x = 5,719,340,286.96/93,437.20
  6. Step 6: Final answer
    x = 61,210.53

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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.