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Finding the Fourth Proportional to 493,226.16, 739,872.05 and 173,339.34

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Solution

The fourth proportional to 493,226.16, 739,872.05 and 173,339.34 is: 260,020.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,226.16 : 739,872.05 = 173,339.34 : x
  2. Step 2: Convert to fraction form
    493,226.16/739,872.05 = 173,339.34/x
  3. Step 3: Cross multiply
    493,226.16x = 739,872.05 × 173,339.34
  4. Step 4: Simplify right side
    493,226.16x = 128,248,931,964.75
  5. Step 5: Solve for x
    x = 128,248,931,964.75/493,226.16
  6. Step 6: Final answer
    x = 260,020.54

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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.