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Finding the Fourth Proportional to 300,172.04, 414,220.02 and 164,178.80

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Solution

The fourth proportional to 300,172.04, 414,220.02 and 164,178.80 is: 226,557.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,172.04 : 414,220.02 = 164,178.80 : x
  2. Step 2: Convert to fraction form
    300,172.04/414,220.02 = 164,178.80/x
  3. Step 3: Cross multiply
    300,172.04x = 414,220.02 × 164,178.80
  4. Step 4: Simplify right side
    300,172.04x = 68,006,145,819.58
  5. Step 5: Solve for x
    x = 68,006,145,819.58/300,172.04
  6. Step 6: Final answer
    x = 226,557.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.