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Finding the Fourth Proportional to 53,808.60, 80,661.70 and 41,955.80

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Solution

The fourth proportional to 53,808.60, 80,661.70 and 41,955.80 is: 62,893.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,808.60 : 80,661.70 = 41,955.80 : x
  2. Step 2: Convert to fraction form
    53,808.60/80,661.70 = 41,955.80/x
  3. Step 3: Cross multiply
    53,808.60x = 80,661.70 × 41,955.80
  4. Step 4: Simplify right side
    53,808.60x = 3,384,226,152.86
  5. Step 5: Solve for x
    x = 3,384,226,152.86/53,808.60
  6. Step 6: Final answer
    x = 62,893.78

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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.