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Finding the Fourth Proportional to 85,092.64, 117,425.76 and 47,366.08

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Solution

The fourth proportional to 85,092.64, 117,425.76 and 47,366.08 is: 65,364.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,092.64 : 117,425.76 = 47,366.08 : x
  2. Step 2: Convert to fraction form
    85,092.64/117,425.76 = 47,366.08/x
  3. Step 3: Cross multiply
    85,092.64x = 117,425.76 × 47,366.08
  4. Step 4: Simplify right side
    85,092.64x = 5,561,997,942.22
  5. Step 5: Solve for x
    x = 5,561,997,942.22/85,092.64
  6. Step 6: Final answer
    x = 65,364.03

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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.