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Finding the Fourth Proportional to 71,154.03, 106,731.04 and 26,790.73

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Solution

The fourth proportional to 71,154.03, 106,731.04 and 26,790.73 is: 40,186.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,154.03 : 106,731.04 = 26,790.73 : x
  2. Step 2: Convert to fraction form
    71,154.03/106,731.04 = 26,790.73/x
  3. Step 3: Cross multiply
    71,154.03x = 106,731.04 × 26,790.73
  4. Step 4: Simplify right side
    71,154.03x = 2,859,402,475.26
  5. Step 5: Solve for x
    x = 2,859,402,475.26/71,154.03
  6. Step 6: Final answer
    x = 40,186.09

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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.