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Finding the Fourth Proportional to 173,821.80, 260,732.70 and 61,628.70

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Solution

The fourth proportional to 173,821.80, 260,732.70 and 61,628.70 is: 92,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,821.80 : 260,732.70 = 61,628.70 : x
  2. Step 2: Convert to fraction form
    173,821.80/260,732.70 = 61,628.70/x
  3. Step 3: Cross multiply
    173,821.80x = 260,732.70 × 61,628.70
  4. Step 4: Simplify right side
    173,821.80x = 16,068,617,348.49
  5. Step 5: Solve for x
    x = 16,068,617,348.49/173,821.80
  6. Step 6: Final answer
    x = 92,443.05

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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.