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Finding the Fourth Proportional to 125,411.08, 173,072.30 and 68,824.48

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Solution

The fourth proportional to 125,411.08, 173,072.30 and 68,824.48 is: 94,980.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,411.08 : 173,072.30 = 68,824.48 : x
  2. Step 2: Convert to fraction form
    125,411.08/173,072.30 = 68,824.48/x
  3. Step 3: Cross multiply
    125,411.08x = 173,072.30 × 68,824.48
  4. Step 4: Simplify right side
    125,411.08x = 11,911,611,049.90
  5. Step 5: Solve for x
    x = 11,911,611,049.90/125,411.08
  6. Step 6: Final answer
    x = 94,980.53

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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.