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Finding the Fourth Proportional to 144,879.60, 217,254.60 and 56,103.60

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Solution

The fourth proportional to 144,879.60, 217,254.60 and 56,103.60 is: 84,130.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,879.60 : 217,254.60 = 56,103.60 : x
  2. Step 2: Convert to fraction form
    144,879.60/217,254.60 = 56,103.60/x
  3. Step 3: Cross multiply
    144,879.60x = 217,254.60 × 56,103.60
  4. Step 4: Simplify right side
    144,879.60x = 12,188,765,176.56
  5. Step 5: Solve for x
    x = 12,188,765,176.56/144,879.60
  6. Step 6: Final answer
    x = 84,130.31

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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.