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Finding the Fourth Proportional to 519,879.30, 779,893.35 and 160,080.60

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Solution

The fourth proportional to 519,879.30, 779,893.35 and 160,080.60 is: 240,143.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,879.30 : 779,893.35 = 160,080.60 : x
  2. Step 2: Convert to fraction form
    519,879.30/779,893.35 = 160,080.60/x
  3. Step 3: Cross multiply
    519,879.30x = 779,893.35 × 160,080.60
  4. Step 4: Simplify right side
    519,879.30x = 124,845,795,404.01
  5. Step 5: Solve for x
    x = 124,845,795,404.01/519,879.30
  6. Step 6: Final answer
    x = 240,143.81

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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.