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Finding the Fourth Proportional to 125,406.58, 173,066.07 and 68,819.98

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Solution

The fourth proportional to 125,406.58, 173,066.07 and 68,819.98 is: 94,974.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,406.58 : 173,066.07 = 68,819.98 : x
  2. Step 2: Convert to fraction form
    125,406.58/173,066.07 = 68,819.98/x
  3. Step 3: Cross multiply
    125,406.58x = 173,066.07 × 68,819.98
  4. Step 4: Simplify right side
    125,406.58x = 11,910,403,476.08
  5. Step 5: Solve for x
    x = 11,910,403,476.08/125,406.58
  6. Step 6: Final answer
    x = 94,974.31

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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.