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Finding the Fourth Proportional to 164,797.20, 247,195.80 and 162,172.80

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Solution

The fourth proportional to 164,797.20, 247,195.80 and 162,172.80 is: 243,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,797.20 : 247,195.80 = 162,172.80 : x
  2. Step 2: Convert to fraction form
    164,797.20/247,195.80 = 162,172.80/x
  3. Step 3: Cross multiply
    164,797.20x = 247,195.80 × 162,172.80
  4. Step 4: Simplify right side
    164,797.20x = 40,088,435,034.24
  5. Step 5: Solve for x
    x = 40,088,435,034.24/164,797.20
  6. Step 6: Final answer
    x = 243,259.20

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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.