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Finding the Fourth Proportional to 85,302.97, 117,717.29 and 47,062.83

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Solution

The fourth proportional to 85,302.97, 117,717.29 and 47,062.83 is: 64,946.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,302.97 : 117,717.29 = 47,062.83 : x
  2. Step 2: Convert to fraction form
    85,302.97/117,717.29 = 47,062.83/x
  3. Step 3: Cross multiply
    85,302.97x = 117,717.29 × 47,062.83
  4. Step 4: Simplify right side
    85,302.97x = 5,540,108,991.23
  5. Step 5: Solve for x
    x = 5,540,108,991.23/85,302.97
  6. Step 6: Final answer
    x = 64,946.26

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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.