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Finding the Fourth Proportional to 73,792.20, 110,666.70 and 26,401.80

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Solution

The fourth proportional to 73,792.20, 110,666.70 and 26,401.80 is: 39,594.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,792.20 : 110,666.70 = 26,401.80 : x
  2. Step 2: Convert to fraction form
    73,792.20/110,666.70 = 26,401.80/x
  3. Step 3: Cross multiply
    73,792.20x = 110,666.70 × 26,401.80
  4. Step 4: Simplify right side
    73,792.20x = 2,921,800,080.06
  5. Step 5: Solve for x
    x = 2,921,800,080.06/73,792.20
  6. Step 6: Final answer
    x = 39,594.97

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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.