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Finding the Fourth Proportional to 173,635.10, 260,043.05 and 107,279.90

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Solution

The fourth proportional to 173,635.10, 260,043.05 and 107,279.90 is: 160,666.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,635.10 : 260,043.05 = 107,279.90 : x
  2. Step 2: Convert to fraction form
    173,635.10/260,043.05 = 107,279.90/x
  3. Step 3: Cross multiply
    173,635.10x = 260,043.05 × 107,279.90
  4. Step 4: Simplify right side
    173,635.10x = 27,897,392,399.70
  5. Step 5: Solve for x
    x = 27,897,392,399.70/173,635.10
  6. Step 6: Final answer
    x = 160,666.78

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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.