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Finding the Fourth Proportional to 125,528.64, 173,229.51 and 68,940.01

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Solution

The fourth proportional to 125,528.64, 173,229.51 and 68,940.01 is: 95,137.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,528.64 : 173,229.51 = 68,940.01 : x
  2. Step 2: Convert to fraction form
    125,528.64/173,229.51 = 68,940.01/x
  3. Step 3: Cross multiply
    125,528.64x = 173,229.51 × 68,940.01
  4. Step 4: Simplify right side
    125,528.64x = 11,942,444,151.70
  5. Step 5: Solve for x
    x = 11,942,444,151.70/125,528.64
  6. Step 6: Final answer
    x = 95,137.21

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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.