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Finding the Fourth Proportional to 125,805, 173,611.44 and 69,217.32

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Solution

The fourth proportional to 125,805, 173,611.44 and 69,217.32 is: 95,520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,805 : 173,611.44 = 69,217.32 : x
  2. Step 2: Convert to fraction form
    125,805/173,611.44 = 69,217.32/x
  3. Step 3: Cross multiply
    125,805x = 173,611.44 × 69,217.32
  4. Step 4: Simplify right side
    125,805x = 12,016,918,598.14
  5. Step 5: Solve for x
    x = 12,016,918,598.14/125,805
  6. Step 6: Final answer
    x = 95,520.20

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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.