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Finding the Fourth Proportional to 251,446, 377,191.68 and 64,459.12

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Solution

The fourth proportional to 251,446, 377,191.68 and 64,459.12 is: 96,694.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,446 : 377,191.68 = 64,459.12 : x
  2. Step 2: Convert to fraction form
    251,446/377,191.68 = 64,459.12/x
  3. Step 3: Cross multiply
    251,446x = 377,191.68 × 64,459.12
  4. Step 4: Simplify right side
    251,446x = 24,313,443,764.12
  5. Step 5: Solve for x
    x = 24,313,443,764.12/251,446
  6. Step 6: Final answer
    x = 96,694.49

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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.