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Finding the Fourth Proportional to 164,485.20, 246,727.80 and 125,119.20

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Solution

The fourth proportional to 164,485.20, 246,727.80 and 125,119.20 is: 187,678.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,485.20 : 246,727.80 = 125,119.20 : x
  2. Step 2: Convert to fraction form
    164,485.20/246,727.80 = 125,119.20/x
  3. Step 3: Cross multiply
    164,485.20x = 246,727.80 × 125,119.20
  4. Step 4: Simplify right side
    164,485.20x = 30,870,384,953.76
  5. Step 5: Solve for x
    x = 30,870,384,953.76/164,485.20
  6. Step 6: Final answer
    x = 187,678.80

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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.