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Finding the Fourth Proportional to 125,244.78, 172,837.80 and 68,654.94

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Solution

The fourth proportional to 125,244.78, 172,837.80 and 68,654.94 is: 94,743.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,244.78 : 172,837.80 = 68,654.94 : x
  2. Step 2: Convert to fraction form
    125,244.78/172,837.80 = 68,654.94/x
  3. Step 3: Cross multiply
    125,244.78x = 172,837.80 × 68,654.94
  4. Step 4: Simplify right side
    125,244.78x = 11,866,168,788.73
  5. Step 5: Solve for x
    x = 11,866,168,788.73/125,244.78
  6. Step 6: Final answer
    x = 94,743.82

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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.