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Finding the Fourth Proportional to 53,310.60, 79,914.70 and 41,457.80

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Solution

The fourth proportional to 53,310.60, 79,914.70 and 41,457.80 is: 62,146.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,310.60 : 79,914.70 = 41,457.80 : x
  2. Step 2: Convert to fraction form
    53,310.60/79,914.70 = 41,457.80/x
  3. Step 3: Cross multiply
    53,310.60x = 79,914.70 × 41,457.80
  4. Step 4: Simplify right side
    53,310.60x = 3,313,087,649.66
  5. Step 5: Solve for x
    x = 3,313,087,649.66/53,310.60
  6. Step 6: Final answer
    x = 62,146.88

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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.