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Finding the Fourth Proportional to 256,610.86, 354,115.64 and 141,887.52

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Solution

The fourth proportional to 256,610.86, 354,115.64 and 141,887.52 is: 195,800.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,610.86 : 354,115.64 = 141,887.52 : x
  2. Step 2: Convert to fraction form
    256,610.86/354,115.64 = 141,887.52/x
  3. Step 3: Cross multiply
    256,610.86x = 354,115.64 × 141,887.52
  4. Step 4: Simplify right side
    256,610.86x = 50,244,589,952.81
  5. Step 5: Solve for x
    x = 50,244,589,952.81/256,610.86
  6. Step 6: Final answer
    x = 195,800.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.