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Finding the Fourth Proportional to 117,612.39, 176,391.99 and 54,397.83

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Solution

The fourth proportional to 117,612.39, 176,391.99 and 54,397.83 is: 81,584.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,612.39 : 176,391.99 = 54,397.83 : x
  2. Step 2: Convert to fraction form
    117,612.39/176,391.99 = 54,397.83/x
  3. Step 3: Cross multiply
    117,612.39x = 176,391.99 × 54,397.83
  4. Step 4: Simplify right side
    117,612.39x = 9,595,341,180.40
  5. Step 5: Solve for x
    x = 9,595,341,180.40/117,612.39
  6. Step 6: Final answer
    x = 81,584.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.