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Finding the Fourth Proportional to 251,081.68, 376,622.40 and 64,093.12

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Solution

The fourth proportional to 251,081.68, 376,622.40 and 64,093.12 is: 96,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,081.68 : 376,622.40 = 64,093.12 : x
  2. Step 2: Convert to fraction form
    251,081.68/376,622.40 = 64,093.12/x
  3. Step 3: Cross multiply
    251,081.68x = 376,622.40 × 64,093.12
  4. Step 4: Simplify right side
    251,081.68x = 24,138,904,677.89
  5. Step 5: Solve for x
    x = 24,138,904,677.89/251,081.68
  6. Step 6: Final answer
    x = 96,139.65

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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.