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Finding the Fourth Proportional to 123,405.92, 185,108.27 and 29,911.67

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Solution

The fourth proportional to 123,405.92, 185,108.27 and 29,911.67 is: 44,867.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,405.92 : 185,108.27 = 29,911.67 : x
  2. Step 2: Convert to fraction form
    123,405.92/185,108.27 = 29,911.67/x
  3. Step 3: Cross multiply
    123,405.92x = 185,108.27 × 29,911.67
  4. Step 4: Simplify right side
    123,405.92x = 5,536,897,486.51
  5. Step 5: Solve for x
    x = 5,536,897,486.51/123,405.92
  6. Step 6: Final answer
    x = 44,867.36

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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.