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Finding the Fourth Proportional to 117,590.82, 162,272.61 and 63,874.64

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Solution

The fourth proportional to 117,590.82, 162,272.61 and 63,874.64 is: 88,145.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,590.82 : 162,272.61 = 63,874.64 : x
  2. Step 2: Convert to fraction form
    117,590.82/162,272.61 = 63,874.64/x
  3. Step 3: Cross multiply
    117,590.82x = 162,272.61 × 63,874.64
  4. Step 4: Simplify right side
    117,590.82x = 10,365,103,734.25
  5. Step 5: Solve for x
    x = 10,365,103,734.25/117,590.82
  6. Step 6: Final answer
    x = 88,145.52

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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.