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Finding the Fourth Proportional to 117,458.47, 162,092.79 and 63,743.48

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Solution

The fourth proportional to 117,458.47, 162,092.79 and 63,743.48 is: 87,966.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,458.47 : 162,092.79 = 63,743.48 : x
  2. Step 2: Convert to fraction form
    117,458.47/162,092.79 = 63,743.48/x
  3. Step 3: Cross multiply
    117,458.47x = 162,092.79 × 63,743.48
  4. Step 4: Simplify right side
    117,458.47x = 10,332,358,517.51
  5. Step 5: Solve for x
    x = 10,332,358,517.51/117,458.47
  6. Step 6: Final answer
    x = 87,966.06

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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.