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Finding the Fourth Proportional to 272,668.52, 376,185.15 and 157,884.50

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Solution

The fourth proportional to 272,668.52, 376,185.15 and 157,884.50 is: 217,824.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,668.52 : 376,185.15 = 157,884.50 : x
  2. Step 2: Convert to fraction form
    272,668.52/376,185.15 = 157,884.50/x
  3. Step 3: Cross multiply
    272,668.52x = 376,185.15 × 157,884.50
  4. Step 4: Simplify right side
    272,668.52x = 59,393,805,847.70
  5. Step 5: Solve for x
    x = 59,393,805,847.70/272,668.52
  6. Step 6: Final answer
    x = 217,824.21

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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.