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Finding the Fourth Proportional to 186,785.80, 280,178.70 and 164,624.20

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Solution

The fourth proportional to 186,785.80, 280,178.70 and 164,624.20 is: 246,936.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,785.80 : 280,178.70 = 164,624.20 : x
  2. Step 2: Convert to fraction form
    186,785.80/280,178.70 = 164,624.20/x
  3. Step 3: Cross multiply
    186,785.80x = 280,178.70 × 164,624.20
  4. Step 4: Simplify right side
    186,785.80x = 46,124,194,344.54
  5. Step 5: Solve for x
    x = 46,124,194,344.54/186,785.80
  6. Step 6: Final answer
    x = 246,936.30

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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.