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Finding the Fourth Proportional to 117,458.77, 162,093.21 and 63,743.80

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Solution

The fourth proportional to 117,458.77, 162,093.21 and 63,743.80 is: 87,966.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,458.77 : 162,093.21 = 63,743.80 : x
  2. Step 2: Convert to fraction form
    117,458.77/162,093.21 = 63,743.80/x
  3. Step 3: Cross multiply
    117,458.77x = 162,093.21 × 63,743.80
  4. Step 4: Simplify right side
    117,458.77x = 10,332,436,349.13
  5. Step 5: Solve for x
    x = 10,332,436,349.13/117,458.77
  6. Step 6: Final answer
    x = 87,966.50

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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.