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Finding the Fourth Proportional to 123,599.60, 185,388.60 and 40,493.60

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Solution

The fourth proportional to 123,599.60, 185,388.60 and 40,493.60 is: 60,736.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,599.60 : 185,388.60 = 40,493.60 : x
  2. Step 2: Convert to fraction form
    123,599.60/185,388.60 = 40,493.60/x
  3. Step 3: Cross multiply
    123,599.60x = 185,388.60 × 40,493.60
  4. Step 4: Simplify right side
    123,599.60x = 7,507,051,812.96
  5. Step 5: Solve for x
    x = 7,507,051,812.96/123,599.60
  6. Step 6: Final answer
    x = 60,736.86

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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.