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Finding the Fourth Proportional to 270,915.92, 406,393.37 and 93,420.37

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Solution

The fourth proportional to 270,915.92, 406,393.37 and 93,420.37 is: 140,137.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,915.92 : 406,393.37 = 93,420.37 : x
  2. Step 2: Convert to fraction form
    270,915.92/406,393.37 = 93,420.37/x
  3. Step 3: Cross multiply
    270,915.92x = 406,393.37 × 93,420.37
  4. Step 4: Simplify right side
    270,915.92x = 37,965,418,990.95
  5. Step 5: Solve for x
    x = 37,965,418,990.95/270,915.92
  6. Step 6: Final answer
    x = 140,137.28

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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.