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Finding the Fourth Proportional to 123,243.12, 184,864.44 and 49,371.12

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Solution

The fourth proportional to 123,243.12, 184,864.44 and 49,371.12 is: 74,056.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,243.12 : 184,864.44 = 49,371.12 : x
  2. Step 2: Convert to fraction form
    123,243.12/184,864.44 = 49,371.12/x
  3. Step 3: Cross multiply
    123,243.12x = 184,864.44 × 49,371.12
  4. Step 4: Simplify right side
    123,243.12x = 9,126,964,450.97
  5. Step 5: Solve for x
    x = 9,126,964,450.97/123,243.12
  6. Step 6: Final answer
    x = 74,056.58

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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.