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Finding the Fourth Proportional to 212,387.76, 293,092.88 and 116,892.41

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Solution

The fourth proportional to 212,387.76, 293,092.88 and 116,892.41 is: 161,310.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,387.76 : 293,092.88 = 116,892.41 : x
  2. Step 2: Convert to fraction form
    212,387.76/293,092.88 = 116,892.41/x
  3. Step 3: Cross multiply
    212,387.76x = 293,092.88 × 116,892.41
  4. Step 4: Simplify right side
    212,387.76x = 34,260,331,047.11
  5. Step 5: Solve for x
    x = 34,260,331,047.11/212,387.76
  6. Step 6: Final answer
    x = 161,310.29

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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.