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Finding the Fourth Proportional to 84,925.28, 117,195.72 and 47,198.72

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Solution

The fourth proportional to 84,925.28, 117,195.72 and 47,198.72 is: 65,133.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,925.28 : 117,195.72 = 47,198.72 : x
  2. Step 2: Convert to fraction form
    84,925.28/117,195.72 = 47,198.72/x
  3. Step 3: Cross multiply
    84,925.28x = 117,195.72 × 47,198.72
  4. Step 4: Simplify right side
    84,925.28x = 5,531,487,973.48
  5. Step 5: Solve for x
    x = 5,531,487,973.48/84,925.28
  6. Step 6: Final answer
    x = 65,133.59

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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.