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Finding the Fourth Proportional to 79,671, 109,951.23 and 46,137

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Solution

The fourth proportional to 79,671, 109,951.23 and 46,137 is: 63,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,671 : 109,951.23 = 46,137 : x
  2. Step 2: Convert to fraction form
    79,671/109,951.23 = 46,137/x
  3. Step 3: Cross multiply
    79,671x = 109,951.23 × 46,137
  4. Step 4: Simplify right side
    79,671x = 5,072,819,898.51
  5. Step 5: Solve for x
    x = 5,072,819,898.51/79,671
  6. Step 6: Final answer
    x = 63,672.10

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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.