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Finding the Fourth Proportional to 123,247.61, 184,871.42 and 40,141.61

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Solution

The fourth proportional to 123,247.61, 184,871.42 and 40,141.61 is: 60,212.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,247.61 : 184,871.42 = 40,141.61 : x
  2. Step 2: Convert to fraction form
    123,247.61/184,871.42 = 40,141.61/x
  3. Step 3: Cross multiply
    123,247.61x = 184,871.42 × 40,141.61
  4. Step 4: Simplify right side
    123,247.61x = 7,421,035,316.72
  5. Step 5: Solve for x
    x = 7,421,035,316.72/123,247.61
  6. Step 6: Final answer
    x = 60,212.41

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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.