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Finding the Fourth Proportional to 173,676.40, 260,490.30 and 55,359.70

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Solution

The fourth proportional to 173,676.40, 260,490.30 and 55,359.70 is: 83,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,676.40 : 260,490.30 = 55,359.70 : x
  2. Step 2: Convert to fraction form
    173,676.40/260,490.30 = 55,359.70/x
  3. Step 3: Cross multiply
    173,676.40x = 260,490.30 × 55,359.70
  4. Step 4: Simplify right side
    173,676.40x = 14,420,664,860.91
  5. Step 5: Solve for x
    x = 14,420,664,860.91/173,676.40
  6. Step 6: Final answer
    x = 83,031.80

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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.