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Finding the Fourth Proportional to 185,774.83, 256,415.15 and 105,249.79

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Solution

The fourth proportional to 185,774.83, 256,415.15 and 105,249.79 is: 145,270.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,774.83 : 256,415.15 = 105,249.79 : x
  2. Step 2: Convert to fraction form
    185,774.83/256,415.15 = 105,249.79/x
  3. Step 3: Cross multiply
    185,774.83x = 256,415.15 × 105,249.79
  4. Step 4: Simplify right side
    185,774.83x = 26,987,641,273.96
  5. Step 5: Solve for x
    x = 26,987,641,273.96/185,774.83
  6. Step 6: Final answer
    x = 145,270.71

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1.5x scale

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.