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Finding the Fourth Proportional to 389,334.36, 583,997.85 and 123,094.86

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Solution

The fourth proportional to 389,334.36, 583,997.85 and 123,094.86 is: 184,641.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,334.36 : 583,997.85 = 123,094.86 : x
  2. Step 2: Convert to fraction form
    389,334.36/583,997.85 = 123,094.86/x
  3. Step 3: Cross multiply
    389,334.36x = 583,997.85 × 123,094.86
  4. Step 4: Simplify right side
    389,334.36x = 71,887,133,586.05
  5. Step 5: Solve for x
    x = 71,887,133,586.05/389,334.36
  6. Step 6: Final answer
    x = 184,641.12

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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.