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Finding the Fourth Proportional to 493,643.08, 740,464.38 and 119,665.96

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Solution

The fourth proportional to 493,643.08, 740,464.38 and 119,665.96 is: 179,498.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,643.08 : 740,464.38 = 119,665.96 : x
  2. Step 2: Convert to fraction form
    493,643.08/740,464.38 = 119,665.96/x
  3. Step 3: Cross multiply
    493,643.08x = 740,464.38 × 119,665.96
  4. Step 4: Simplify right side
    493,643.08x = 88,608,380,878.50
  5. Step 5: Solve for x
    x = 88,608,380,878.50/493,643.08
  6. Step 6: Final answer
    x = 179,498.88

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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.