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Finding the Fourth Proportional to 251,264.10, 376,910.51 and 71,335.46

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Solution

The fourth proportional to 251,264.10, 376,910.51 and 71,335.46 is: 107,007.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,264.10 : 376,910.51 = 71,335.46 : x
  2. Step 2: Convert to fraction form
    251,264.10/376,910.51 = 71,335.46/x
  3. Step 3: Cross multiply
    251,264.10x = 376,910.51 × 71,335.46
  4. Step 4: Simplify right side
    251,264.10x = 26,887,082,368.45
  5. Step 5: Solve for x
    x = 26,887,082,368.45/251,264.10
  6. Step 6: Final answer
    x = 107,007.26

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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.