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Finding the Fourth Proportional to 125,872.89, 173,583.85 and 84,573.28

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Solution

The fourth proportional to 125,872.89, 173,583.85 and 84,573.28 is: 116,630.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,872.89 : 173,583.85 = 84,573.28 : x
  2. Step 2: Convert to fraction form
    125,872.89/173,583.85 = 84,573.28/x
  3. Step 3: Cross multiply
    125,872.89x = 173,583.85 × 84,573.28
  4. Step 4: Simplify right side
    125,872.89x = 14,680,554,692.70
  5. Step 5: Solve for x
    x = 14,680,554,692.70/125,872.89
  6. Step 6: Final answer
    x = 116,630.00

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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.