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Finding the Fourth Proportional to 117,875.64, 162,676.14 and 67,575.48

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Solution

The fourth proportional to 117,875.64, 162,676.14 and 67,575.48 is: 93,258.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,875.64 : 162,676.14 = 67,575.48 : x
  2. Step 2: Convert to fraction form
    117,875.64/162,676.14 = 67,575.48/x
  3. Step 3: Cross multiply
    117,875.64x = 162,676.14 × 67,575.48
  4. Step 4: Simplify right side
    117,875.64x = 10,992,918,245.05
  5. Step 5: Solve for x
    x = 10,992,918,245.05/117,875.64
  6. Step 6: Final answer
    x = 93,258.61

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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.