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Finding the Fourth Proportional to 117,663.48, 162,376.68 and 63,948.64

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Solution

The fourth proportional to 117,663.48, 162,376.68 and 63,948.64 is: 88,249.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,663.48 : 162,376.68 = 63,948.64 : x
  2. Step 2: Convert to fraction form
    117,663.48/162,376.68 = 63,948.64/x
  3. Step 3: Cross multiply
    117,663.48x = 162,376.68 × 63,948.64
  4. Step 4: Simplify right side
    117,663.48x = 10,383,767,853.72
  5. Step 5: Solve for x
    x = 10,383,767,853.72/117,663.48
  6. Step 6: Final answer
    x = 88,249.71

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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.