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Finding the Fourth Proportional to 125,393.52, 173,046.60 and 68,808.60

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Solution

The fourth proportional to 125,393.52, 173,046.60 and 68,808.60 is: 94,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,393.52 : 173,046.60 = 68,808.60 : x
  2. Step 2: Convert to fraction form
    125,393.52/173,046.60 = 68,808.60/x
  3. Step 3: Cross multiply
    125,393.52x = 173,046.60 × 68,808.60
  4. Step 4: Simplify right side
    125,393.52x = 11,907,094,280.76
  5. Step 5: Solve for x
    x = 11,907,094,280.76/125,393.52
  6. Step 6: Final answer
    x = 94,957.81

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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.