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Finding the Fourth Proportional to 125,458.06, 173,131.68 and 68,097.39

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Solution

The fourth proportional to 125,458.06, 173,131.68 and 68,097.39 is: 93,974.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,458.06 : 173,131.68 = 68,097.39 : x
  2. Step 2: Convert to fraction form
    125,458.06/173,131.68 = 68,097.39/x
  3. Step 3: Cross multiply
    125,458.06x = 173,131.68 × 68,097.39
  4. Step 4: Simplify right side
    125,458.06x = 11,789,815,534.32
  5. Step 5: Solve for x
    x = 11,789,815,534.32/125,458.06
  6. Step 6: Final answer
    x = 93,974.16

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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.