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Finding the Fourth Proportional to 84,771.66, 117,006.42 and 57,925.02

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Solution

The fourth proportional to 84,771.66, 117,006.42 and 57,925.02 is: 79,951.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,771.66 : 117,006.42 = 57,925.02 : x
  2. Step 2: Convert to fraction form
    84,771.66/117,006.42 = 57,925.02/x
  3. Step 3: Cross multiply
    84,771.66x = 117,006.42 × 57,925.02
  4. Step 4: Simplify right side
    84,771.66x = 6,777,599,218.63
  5. Step 5: Solve for x
    x = 6,777,599,218.63/84,771.66
  6. Step 6: Final answer
    x = 79,951.24

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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.