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Finding the Fourth Proportional to 185,793.62, 256,501.42 and 122,315.94

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Solution

The fourth proportional to 185,793.62, 256,501.42 and 122,315.94 is: 168,865.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,793.62 : 256,501.42 = 122,315.94 : x
  2. Step 2: Convert to fraction form
    185,793.62/256,501.42 = 122,315.94/x
  3. Step 3: Cross multiply
    185,793.62x = 256,501.42 × 122,315.94
  4. Step 4: Simplify right side
    185,793.62x = 31,374,211,992.85
  5. Step 5: Solve for x
    x = 31,374,211,992.85/185,793.62
  6. Step 6: Final answer
    x = 168,865.93

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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.