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Finding the Fourth Proportional to 185,440.80, 278,039.70 and 73,053.30

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Solution

The fourth proportional to 185,440.80, 278,039.70 and 73,053.30 is: 109,532.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,440.80 : 278,039.70 = 73,053.30 : x
  2. Step 2: Convert to fraction form
    185,440.80/278,039.70 = 73,053.30/x
  3. Step 3: Cross multiply
    185,440.80x = 278,039.70 × 73,053.30
  4. Step 4: Simplify right side
    185,440.80x = 20,311,717,616.01
  5. Step 5: Solve for x
    x = 20,311,717,616.01/185,440.80
  6. Step 6: Final answer
    x = 109,532.09

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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.