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Finding the Fourth Proportional to 164,337.20, 246,505.80 and 39,678.20

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Solution

The fourth proportional to 164,337.20, 246,505.80 and 39,678.20 is: 59,517.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,337.20 : 246,505.80 = 39,678.20 : x
  2. Step 2: Convert to fraction form
    164,337.20/246,505.80 = 39,678.20/x
  3. Step 3: Cross multiply
    164,337.20x = 246,505.80 × 39,678.20
  4. Step 4: Simplify right side
    164,337.20x = 9,780,905,201.03
  5. Step 5: Solve for x
    x = 9,780,905,201.03/164,337.20
  6. Step 6: Final answer
    x = 59,517.29

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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.