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Finding the Fourth Proportional to 125,806.98, 173,611.15 and 69,219.30

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Solution

The fourth proportional to 125,806.98, 173,611.15 and 69,219.30 is: 95,521.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,806.98 : 173,611.15 = 69,219.30 : x
  2. Step 2: Convert to fraction form
    125,806.98/173,611.15 = 69,219.30/x
  3. Step 3: Cross multiply
    125,806.98x = 173,611.15 × 69,219.30
  4. Step 4: Simplify right side
    125,806.98x = 12,017,242,275.20
  5. Step 5: Solve for x
    x = 12,017,242,275.20/125,806.98
  6. Step 6: Final answer
    x = 95,521.27

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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.