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Finding the Fourth Proportional to 343,684.27, 515,374.16 and 183,721.45

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Solution

The fourth proportional to 343,684.27, 515,374.16 and 183,721.45 is: 275,500.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,684.27 : 515,374.16 = 183,721.45 : x
  2. Step 2: Convert to fraction form
    343,684.27/515,374.16 = 183,721.45/x
  3. Step 3: Cross multiply
    343,684.27x = 515,374.16 × 183,721.45
  4. Step 4: Simplify right side
    343,684.27x = 94,685,287,967.73
  5. Step 5: Solve for x
    x = 94,685,287,967.73/343,684.27
  6. Step 6: Final answer
    x = 275,500.79

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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.