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Finding the Fourth Proportional to 117,587.64, 162,273.87 and 63,872.64

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Solution

The fourth proportional to 117,587.64, 162,273.87 and 63,872.64 is: 88,145.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,587.64 : 162,273.87 = 63,872.64 : x
  2. Step 2: Convert to fraction form
    117,587.64/162,273.87 = 63,872.64/x
  3. Step 3: Cross multiply
    117,587.64x = 162,273.87 × 63,872.64
  4. Step 4: Simplify right side
    117,587.64x = 10,364,860,479.92
  5. Step 5: Solve for x
    x = 10,364,860,479.92/117,587.64
  6. Step 6: Final answer
    x = 88,145.83

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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.