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Finding the Fourth Proportional to 85,473.39, 117,953.60 and 47,748.27

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Solution

The fourth proportional to 85,473.39, 117,953.60 and 47,748.27 is: 65,892.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,473.39 : 117,953.60 = 47,748.27 : x
  2. Step 2: Convert to fraction form
    85,473.39/117,953.60 = 47,748.27/x
  3. Step 3: Cross multiply
    85,473.39x = 117,953.60 × 47,748.27
  4. Step 4: Simplify right side
    85,473.39x = 5,632,080,101.53
  5. Step 5: Solve for x
    x = 5,632,080,101.53/85,473.39
  6. Step 6: Final answer
    x = 65,892.79

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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.