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Finding the Fourth Proportional to 257,619, 355,446.88 and 148,696.68

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Solution

The fourth proportional to 257,619, 355,446.88 and 148,696.68 is: 205,162.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,619 : 355,446.88 = 148,696.68 : x
  2. Step 2: Convert to fraction form
    257,619/355,446.88 = 148,696.68/x
  3. Step 3: Cross multiply
    257,619x = 355,446.88 × 148,696.68
  4. Step 4: Simplify right side
    257,619x = 52,853,770,972.36
  5. Step 5: Solve for x
    x = 52,853,770,972.36/257,619
  6. Step 6: Final answer
    x = 205,162.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.