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Finding the Fourth Proportional to 123,324.40, 184,986.60 and 112,243.60

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Solution

The fourth proportional to 123,324.40, 184,986.60 and 112,243.60 is: 168,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,324.40 : 184,986.60 = 112,243.60 : x
  2. Step 2: Convert to fraction form
    123,324.40/184,986.60 = 112,243.60/x
  3. Step 3: Cross multiply
    123,324.40x = 184,986.60 × 112,243.60
  4. Step 4: Simplify right side
    123,324.40x = 20,763,561,935.76
  5. Step 5: Solve for x
    x = 20,763,561,935.76/123,324.40
  6. Step 6: Final answer
    x = 168,365.40

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1.5x scale

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.