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Finding the Fourth Proportional to 117,506.90, 162,159.64 and 63,791.88

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Solution

The fourth proportional to 117,506.90, 162,159.64 and 63,791.88 is: 88,032.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,506.90 : 162,159.64 = 63,791.88 : x
  2. Step 2: Convert to fraction form
    117,506.90/162,159.64 = 63,791.88/x
  3. Step 3: Cross multiply
    117,506.90x = 162,159.64 × 63,791.88
  4. Step 4: Simplify right side
    117,506.90x = 10,344,468,295.72
  5. Step 5: Solve for x
    x = 10,344,468,295.72/117,506.90
  6. Step 6: Final answer
    x = 88,032.86

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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.