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Finding the Fourth Proportional to 125,409.93, 188,247.92 and 111,077.28

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Solution

The fourth proportional to 125,409.93, 188,247.92 and 111,077.28 is: 166,733.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,409.93 : 188,247.92 = 111,077.28 : x
  2. Step 2: Convert to fraction form
    125,409.93/188,247.92 = 111,077.28/x
  3. Step 3: Cross multiply
    125,409.93x = 188,247.92 × 111,077.28
  4. Step 4: Simplify right side
    125,409.93x = 20,910,066,363.87
  5. Step 5: Solve for x
    x = 20,910,066,363.87/125,409.93
  6. Step 6: Final answer
    x = 166,733.74

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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.