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Finding the Fourth Proportional to 251,434, 377,173.68 and 64,447.12

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Solution

The fourth proportional to 251,434, 377,173.68 and 64,447.12 is: 96,676.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,434 : 377,173.68 = 64,447.12 : x
  2. Step 2: Convert to fraction form
    251,434/377,173.68 = 64,447.12/x
  3. Step 3: Cross multiply
    251,434x = 377,173.68 × 64,447.12
  4. Step 4: Simplify right side
    251,434x = 24,307,757,415.80
  5. Step 5: Solve for x
    x = 24,307,757,415.80/251,434
  6. Step 6: Final answer
    x = 96,676.49

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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.