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Finding the Fourth Proportional to 123,211.86, 184,840.54 and 38,993.20

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Solution

The fourth proportional to 123,211.86, 184,840.54 and 38,993.20 is: 58,497.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,211.86 : 184,840.54 = 38,993.20 : x
  2. Step 2: Convert to fraction form
    123,211.86/184,840.54 = 38,993.20/x
  3. Step 3: Cross multiply
    123,211.86x = 184,840.54 × 38,993.20
  4. Step 4: Simplify right side
    123,211.86x = 7,207,524,144.33
  5. Step 5: Solve for x
    x = 7,207,524,144.33/123,211.86
  6. Step 6: Final answer
    x = 58,497.00

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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.