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Finding the Fourth Proportional to 275,926.50, 413,515.50 and 125,980.92

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Solution

The fourth proportional to 275,926.50, 413,515.50 and 125,980.92 is: 188,800.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,926.50 : 413,515.50 = 125,980.92 : x
  2. Step 2: Convert to fraction form
    275,926.50/413,515.50 = 125,980.92/x
  3. Step 3: Cross multiply
    275,926.50x = 413,515.50 × 125,980.92
  4. Step 4: Simplify right side
    275,926.50x = 52,095,063,124.26
  5. Step 5: Solve for x
    x = 52,095,063,124.26/275,926.50
  6. Step 6: Final answer
    x = 188,800.51

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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.