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Finding the Fourth Proportional to 251,996.40, 377,994.60 and 65,007.90

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Solution

The fourth proportional to 251,996.40, 377,994.60 and 65,007.90 is: 97,511.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,996.40 : 377,994.60 = 65,007.90 : x
  2. Step 2: Convert to fraction form
    251,996.40/377,994.60 = 65,007.90/x
  3. Step 3: Cross multiply
    251,996.40x = 377,994.60 × 65,007.90
  4. Step 4: Simplify right side
    251,996.40x = 24,572,635,157.34
  5. Step 5: Solve for x
    x = 24,572,635,157.34/251,996.40
  6. Step 6: Final answer
    x = 97,511.85

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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.