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Finding the Fourth Proportional to 125,954.92, 188,010.86 and 111,008.67

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Solution

The fourth proportional to 125,954.92, 188,010.86 and 111,008.67 is: 165,700.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,954.92 : 188,010.86 = 111,008.67 : x
  2. Step 2: Convert to fraction form
    125,954.92/188,010.86 = 111,008.67/x
  3. Step 3: Cross multiply
    125,954.92x = 188,010.86 × 111,008.67
  4. Step 4: Simplify right side
    125,954.92x = 20,870,835,514.16
  5. Step 5: Solve for x
    x = 20,870,835,514.16/125,954.92
  6. Step 6: Final answer
    x = 165,700.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.