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Finding the Fourth Proportional to 125,957.73, 173,837.56 and 72,241.60

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Solution

The fourth proportional to 125,957.73, 173,837.56 and 72,241.60 is: 99,702.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,957.73 : 173,837.56 = 72,241.60 : x
  2. Step 2: Convert to fraction form
    125,957.73/173,837.56 = 72,241.60/x
  3. Step 3: Cross multiply
    125,957.73x = 173,837.56 × 72,241.60
  4. Step 4: Simplify right side
    125,957.73x = 12,558,303,474.50
  5. Step 5: Solve for x
    x = 12,558,303,474.50/125,957.73
  6. Step 6: Final answer
    x = 99,702.52

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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.