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Finding the Fourth Proportional to 172,270.98, 237,721.77 and 96,830.82

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Solution

The fourth proportional to 172,270.98, 237,721.77 and 96,830.82 is: 133,619.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,270.98 : 237,721.77 = 96,830.82 : x
  2. Step 2: Convert to fraction form
    172,270.98/237,721.77 = 96,830.82/x
  3. Step 3: Cross multiply
    172,270.98x = 237,721.77 × 96,830.82
  4. Step 4: Simplify right side
    172,270.98x = 23,018,793,920.95
  5. Step 5: Solve for x
    x = 23,018,793,920.95/172,270.98
  6. Step 6: Final answer
    x = 133,619.68

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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.