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Finding the Fourth Proportional to 304,861.40, 457,551.30 and 136,640.60

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Solution

The fourth proportional to 304,861.40, 457,551.30 and 136,640.60 is: 205,077.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,861.40 : 457,551.30 = 136,640.60 : x
  2. Step 2: Convert to fraction form
    304,861.40/457,551.30 = 136,640.60/x
  3. Step 3: Cross multiply
    304,861.40x = 457,551.30 × 136,640.60
  4. Step 4: Simplify right side
    304,861.40x = 62,520,084,162.78
  5. Step 5: Solve for x
    x = 62,520,084,162.78/304,861.40
  6. Step 6: Final answer
    x = 205,077.07

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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.