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Finding the Fourth Proportional to 185,469.86, 255,854.22 and 117,372.08

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Solution

The fourth proportional to 185,469.86, 255,854.22 and 117,372.08 is: 161,913.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,469.86 : 255,854.22 = 117,372.08 : x
  2. Step 2: Convert to fraction form
    185,469.86/255,854.22 = 117,372.08/x
  3. Step 3: Cross multiply
    185,469.86x = 255,854.22 × 117,372.08
  4. Step 4: Simplify right side
    185,469.86x = 30,030,141,978.18
  5. Step 5: Solve for x
    x = 30,030,141,978.18/185,469.86
  6. Step 6: Final answer
    x = 161,913.87

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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.