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Finding the Fourth Proportional to 106,676.30, 160,023.78 and 27,790.40

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Solution

The fourth proportional to 106,676.30, 160,023.78 and 27,790.40 is: 41,688.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,676.30 : 160,023.78 = 27,790.40 : x
  2. Step 2: Convert to fraction form
    106,676.30/160,023.78 = 27,790.40/x
  3. Step 3: Cross multiply
    106,676.30x = 160,023.78 × 27,790.40
  4. Step 4: Simplify right side
    106,676.30x = 4,447,124,055.59
  5. Step 5: Solve for x
    x = 4,447,124,055.59/106,676.30
  6. Step 6: Final answer
    x = 41,688.03

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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.