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Finding the Fourth Proportional to 171,813, 237,205.62 and 112,300.68

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Solution

The fourth proportional to 171,813, 237,205.62 and 112,300.68 is: 155,042.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,813 : 237,205.62 = 112,300.68 : x
  2. Step 2: Convert to fraction form
    171,813/237,205.62 = 112,300.68/x
  3. Step 3: Cross multiply
    171,813x = 237,205.62 × 112,300.68
  4. Step 4: Simplify right side
    171,813x = 26,638,352,425.82
  5. Step 5: Solve for x
    x = 26,638,352,425.82/171,813
  6. Step 6: Final answer
    x = 155,042.71

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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.