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Finding the Fourth Proportional to 61,714, 85,101.60 and 52,791.04

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Solution

The fourth proportional to 61,714, 85,101.60 and 52,791.04 is: 72,797.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,714 : 85,101.60 = 52,791.04 : x
  2. Step 2: Convert to fraction form
    61,714/85,101.60 = 52,791.04/x
  3. Step 3: Cross multiply
    61,714x = 85,101.60 × 52,791.04
  4. Step 4: Simplify right side
    61,714x = 4,492,601,969.66
  5. Step 5: Solve for x
    x = 4,492,601,969.66/61,714
  6. Step 6: Final answer
    x = 72,797.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.