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Finding the Fourth Proportional to 125,803.56, 173,611.56 and 69,215.04

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Solution

The fourth proportional to 125,803.56, 173,611.56 and 69,215.04 is: 95,518.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,803.56 : 173,611.56 = 69,215.04 : x
  2. Step 2: Convert to fraction form
    125,803.56/173,611.56 = 69,215.04/x
  3. Step 3: Cross multiply
    125,803.56x = 173,611.56 × 69,215.04
  4. Step 4: Simplify right side
    125,803.56x = 12,016,531,069.86
  5. Step 5: Solve for x
    x = 12,016,531,069.86/125,803.56
  6. Step 6: Final answer
    x = 95,518.21

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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.