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Finding the Fourth Proportional to 117,671.30, 162,387.64 and 63,956.32

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Solution

The fourth proportional to 117,671.30, 162,387.64 and 63,956.32 is: 88,260.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,671.30 : 162,387.64 = 63,956.32 : x
  2. Step 2: Convert to fraction form
    117,671.30/162,387.64 = 63,956.32/x
  3. Step 3: Cross multiply
    117,671.30x = 162,387.64 × 63,956.32
  4. Step 4: Simplify right side
    117,671.30x = 10,385,715,867.88
  5. Step 5: Solve for x
    x = 10,385,715,867.88/117,671.30
  6. Step 6: Final answer
    x = 88,260.40

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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.