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Finding the Fourth Proportional to 172,081.80, 237,671.55 and 114,626.48

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Solution

The fourth proportional to 172,081.80, 237,671.55 and 114,626.48 is: 158,316.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,081.80 : 237,671.55 = 114,626.48 : x
  2. Step 2: Convert to fraction form
    172,081.80/237,671.55 = 114,626.48/x
  3. Step 3: Cross multiply
    172,081.80x = 237,671.55 × 114,626.48
  4. Step 4: Simplify right side
    172,081.80x = 27,243,451,984.29
  5. Step 5: Solve for x
    x = 27,243,451,984.29/172,081.80
  6. Step 6: Final answer
    x = 158,316.87

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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.