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Finding the Fourth Proportional to 275,708.61, 413,618.27 and 125,908.65

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Solution

The fourth proportional to 275,708.61, 413,618.27 and 125,908.65 is: 188,888.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,708.61 : 413,618.27 = 125,908.65 : x
  2. Step 2: Convert to fraction form
    275,708.61/413,618.27 = 125,908.65/x
  3. Step 3: Cross multiply
    275,708.61x = 413,618.27 × 125,908.65
  4. Step 4: Simplify right side
    275,708.61x = 52,078,117,361.49
  5. Step 5: Solve for x
    x = 52,078,117,361.49/275,708.61
  6. Step 6: Final answer
    x = 188,888.25

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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.