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Finding the Fourth Proportional to 85,262.63, 117,662.42 and 47,536.88

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Solution

The fourth proportional to 85,262.63, 117,662.42 and 47,536.88 is: 65,600.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,262.63 : 117,662.42 = 47,536.88 : x
  2. Step 2: Convert to fraction form
    85,262.63/117,662.42 = 47,536.88/x
  3. Step 3: Cross multiply
    85,262.63x = 117,662.42 × 47,536.88
  4. Step 4: Simplify right side
    85,262.63x = 5,593,303,870.58
  5. Step 5: Solve for x
    x = 5,593,303,870.58/85,262.63
  6. Step 6: Final answer
    x = 65,600.89

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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.