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Finding the Fourth Proportional to 493,656.75, 740,485.13 and 119,679.75

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Solution

The fourth proportional to 493,656.75, 740,485.13 and 119,679.75 is: 179,519.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,656.75 : 740,485.13 = 119,679.75 : x
  2. Step 2: Convert to fraction form
    493,656.75/740,485.13 = 119,679.75/x
  3. Step 3: Cross multiply
    493,656.75x = 740,485.13 × 119,679.75
  4. Step 4: Simplify right side
    493,656.75x = 88,621,074,638.72
  5. Step 5: Solve for x
    x = 88,621,074,638.72/493,656.75
  6. Step 6: Final answer
    x = 179,519.63

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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.