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Finding the Fourth Proportional to 251,081.01, 376,632.90 and 71,179.32

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Solution

The fourth proportional to 251,081.01, 376,632.90 and 71,179.32 is: 106,772.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,081.01 : 376,632.90 = 71,179.32 : x
  2. Step 2: Convert to fraction form
    251,081.01/376,632.90 = 71,179.32/x
  3. Step 3: Cross multiply
    251,081.01x = 376,632.90 × 71,179.32
  4. Step 4: Simplify right side
    251,081.01x = 26,808,473,711.63
  5. Step 5: Solve for x
    x = 26,808,473,711.63/251,081.01
  6. Step 6: Final answer
    x = 106,772.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.