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Finding the Fourth Proportional to 125,608.92, 188,441.06 and 69,530.82

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Solution

The fourth proportional to 125,608.92, 188,441.06 and 69,530.82 is: 104,311.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,608.92 : 188,441.06 = 69,530.82 : x
  2. Step 2: Convert to fraction form
    125,608.92/188,441.06 = 69,530.82/x
  3. Step 3: Cross multiply
    125,608.92x = 188,441.06 × 69,530.82
  4. Step 4: Simplify right side
    125,608.92x = 13,102,461,894.57
  5. Step 5: Solve for x
    x = 13,102,461,894.57/125,608.92
  6. Step 6: Final answer
    x = 104,311.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.