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Finding the Fourth Proportional to 124,458.40, 187,148.40 and 104,183.20

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Solution

The fourth proportional to 124,458.40, 187,148.40 and 104,183.20 is: 156,660.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,458.40 : 187,148.40 = 104,183.20 : x
  2. Step 2: Convert to fraction form
    124,458.40/187,148.40 = 104,183.20/x
  3. Step 3: Cross multiply
    124,458.40x = 187,148.40 × 104,183.20
  4. Step 4: Simplify right side
    124,458.40x = 19,497,719,186.88
  5. Step 5: Solve for x
    x = 19,497,719,186.88/124,458.40
  6. Step 6: Final answer
    x = 156,660.53

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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.