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Finding the Fourth Proportional to 164,429.20, 246,643.80 and 146,918.80

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Solution

The fourth proportional to 164,429.20, 246,643.80 and 146,918.80 is: 220,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,429.20 : 246,643.80 = 146,918.80 : x
  2. Step 2: Convert to fraction form
    164,429.20/246,643.80 = 146,918.80/x
  3. Step 3: Cross multiply
    164,429.20x = 246,643.80 × 146,918.80
  4. Step 4: Simplify right side
    164,429.20x = 36,236,611,123.44
  5. Step 5: Solve for x
    x = 36,236,611,123.44/164,429.20
  6. Step 6: Final answer
    x = 220,378.20

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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.