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Finding the Fourth Proportional to 185,476.88, 255,863.86 and 117,379.08

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Solution

The fourth proportional to 185,476.88, 255,863.86 and 117,379.08 is: 161,923.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,476.88 : 255,863.86 = 117,379.08 : x
  2. Step 2: Convert to fraction form
    185,476.88/255,863.86 = 117,379.08/x
  3. Step 3: Cross multiply
    185,476.88x = 255,863.86 × 117,379.08
  4. Step 4: Simplify right side
    185,476.88x = 30,033,064,492.05
  5. Step 5: Solve for x
    x = 30,033,064,492.05/185,476.88
  6. Step 6: Final answer
    x = 161,923.49

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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.