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Finding the Fourth Proportional to 61,149.60, 91,714.57 and 16,766.06

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Solution

The fourth proportional to 61,149.60, 91,714.57 and 16,766.06 is: 25,146.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,149.60 : 91,714.57 = 16,766.06 : x
  2. Step 2: Convert to fraction form
    61,149.60/91,714.57 = 16,766.06/x
  3. Step 3: Cross multiply
    61,149.60x = 91,714.57 × 16,766.06
  4. Step 4: Simplify right side
    61,149.60x = 1,537,691,483.01
  5. Step 5: Solve for x
    x = 1,537,691,483.01/61,149.60
  6. Step 6: Final answer
    x = 25,146.39

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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.