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Finding the Fourth Proportional to 125,712.73, 173,484.26 and 68,352.61

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Solution

The fourth proportional to 125,712.73, 173,484.26 and 68,352.61 is: 94,326.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,712.73 : 173,484.26 = 68,352.61 : x
  2. Step 2: Convert to fraction form
    125,712.73/173,484.26 = 68,352.61/x
  3. Step 3: Cross multiply
    125,712.73x = 173,484.26 × 68,352.61
  4. Step 4: Simplify right side
    125,712.73x = 11,858,102,155.53
  5. Step 5: Solve for x
    x = 11,858,102,155.53/125,712.73
  6. Step 6: Final answer
    x = 94,326.98

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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.