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Finding the Fourth Proportional to 493,656.82, 740,485.33 and 178,113.62

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Solution

The fourth proportional to 493,656.82, 740,485.33 and 178,113.62 is: 267,170.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,656.82 : 740,485.33 = 178,113.62 : x
  2. Step 2: Convert to fraction form
    493,656.82/740,485.33 = 178,113.62/x
  3. Step 3: Cross multiply
    493,656.82x = 740,485.33 × 178,113.62
  4. Step 4: Simplify right side
    493,656.82x = 131,890,524,089.12
  5. Step 5: Solve for x
    x = 131,890,524,089.12/493,656.82
  6. Step 6: Final answer
    x = 267,170.47

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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.