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Finding the Fourth Proportional to 104,416.40, 156,673.20 and 54,552.80

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Solution

The fourth proportional to 104,416.40, 156,673.20 and 54,552.80 is: 81,854.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,416.40 : 156,673.20 = 54,552.80 : x
  2. Step 2: Convert to fraction form
    104,416.40/156,673.20 = 54,552.80/x
  3. Step 3: Cross multiply
    104,416.40x = 156,673.20 × 54,552.80
  4. Step 4: Simplify right side
    104,416.40x = 8,546,961,744.96
  5. Step 5: Solve for x
    x = 8,546,961,744.96/104,416.40
  6. Step 6: Final answer
    x = 81,854.59

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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.