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Finding the Fourth Proportional to 172,079.63, 237,476.55 and 117,745.70

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Solution

The fourth proportional to 172,079.63, 237,476.55 and 117,745.70 is: 162,493.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,079.63 : 237,476.55 = 117,745.70 : x
  2. Step 2: Convert to fraction form
    172,079.63/237,476.55 = 117,745.70/x
  3. Step 3: Cross multiply
    172,079.63x = 237,476.55 × 117,745.70
  4. Step 4: Simplify right side
    172,079.63x = 27,961,841,425.95
  5. Step 5: Solve for x
    x = 27,961,841,425.95/172,079.63
  6. Step 6: Final answer
    x = 162,493.62

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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.