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Finding the Fourth Proportional to 125,690.54, 173,485.60 and 83,233.58

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Solution

The fourth proportional to 125,690.54, 173,485.60 and 83,233.58 is: 114,883.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,690.54 : 173,485.60 = 83,233.58 : x
  2. Step 2: Convert to fraction form
    125,690.54/173,485.60 = 83,233.58/x
  3. Step 3: Cross multiply
    125,690.54x = 173,485.60 × 83,233.58
  4. Step 4: Simplify right side
    125,690.54x = 14,439,826,490.94
  5. Step 5: Solve for x
    x = 14,439,826,490.94/125,690.54
  6. Step 6: Final answer
    x = 114,883.96

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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.