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Finding the Fourth Proportional to 164,420.80, 246,631.20 and 111,276.70

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Solution

The fourth proportional to 164,420.80, 246,631.20 and 111,276.70 is: 166,915.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,420.80 : 246,631.20 = 111,276.70 : x
  2. Step 2: Convert to fraction form
    164,420.80/246,631.20 = 111,276.70/x
  3. Step 3: Cross multiply
    164,420.80x = 246,631.20 × 111,276.70
  4. Step 4: Simplify right side
    164,420.80x = 27,444,306,053.04
  5. Step 5: Solve for x
    x = 27,444,306,053.04/164,420.80
  6. Step 6: Final answer
    x = 166,915.05

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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.