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Finding the Fourth Proportional to 173,879.10, 260,818.65 and 74,042.55

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Solution

The fourth proportional to 173,879.10, 260,818.65 and 74,042.55 is: 111,063.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,879.10 : 260,818.65 = 74,042.55 : x
  2. Step 2: Convert to fraction form
    173,879.10/260,818.65 = 74,042.55/x
  3. Step 3: Cross multiply
    173,879.10x = 260,818.65 × 74,042.55
  4. Step 4: Simplify right side
    173,879.10x = 19,311,677,933.56
  5. Step 5: Solve for x
    x = 19,311,677,933.56/173,879.10
  6. Step 6: Final answer
    x = 111,063.83

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1.5x scale

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.