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Finding the Fourth Proportional to 85,935.44, 118,591.62 and 47,697.64

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Solution

The fourth proportional to 85,935.44, 118,591.62 and 47,697.64 is: 65,823.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,935.44 : 118,591.62 = 47,697.64 : x
  2. Step 2: Convert to fraction form
    85,935.44/118,591.62 = 47,697.64/x
  3. Step 3: Cross multiply
    85,935.44x = 118,591.62 × 47,697.64
  4. Step 4: Simplify right side
    85,935.44x = 5,656,540,397.78
  5. Step 5: Solve for x
    x = 5,656,540,397.78/85,935.44
  6. Step 6: Final answer
    x = 65,823.14

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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.