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Finding the Fourth Proportional to 79,672.32, 109,946.88 and 46,141.44

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Solution

The fourth proportional to 79,672.32, 109,946.88 and 46,141.44 is: 63,674.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,672.32 : 109,946.88 = 46,141.44 : x
  2. Step 2: Convert to fraction form
    79,672.32/109,946.88 = 46,141.44/x
  3. Step 3: Cross multiply
    79,672.32x = 109,946.88 × 46,141.44
  4. Step 4: Simplify right side
    79,672.32x = 5,073,107,366.71
  5. Step 5: Solve for x
    x = 5,073,107,366.71/79,672.32
  6. Step 6: Final answer
    x = 63,674.65

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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.