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Finding the Fourth Proportional to 53,307.60, 79,910.20 and 41,454.80

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Solution

The fourth proportional to 53,307.60, 79,910.20 and 41,454.80 is: 62,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,307.60 : 79,910.20 = 41,454.80 : x
  2. Step 2: Convert to fraction form
    53,307.60/79,910.20 = 41,454.80/x
  3. Step 3: Cross multiply
    53,307.60x = 79,910.20 × 41,454.80
  4. Step 4: Simplify right side
    53,307.60x = 3,312,661,358.96
  5. Step 5: Solve for x
    x = 3,312,661,358.96/53,307.60
  6. Step 6: Final answer
    x = 62,142.38

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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.