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Finding the Fourth Proportional to 191,988.28, 264,991.26 and 116,599.96

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Solution

The fourth proportional to 191,988.28, 264,991.26 and 116,599.96 is: 160,936.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,988.28 : 264,991.26 = 116,599.96 : x
  2. Step 2: Convert to fraction form
    191,988.28/264,991.26 = 116,599.96/x
  3. Step 3: Cross multiply
    191,988.28x = 264,991.26 × 116,599.96
  4. Step 4: Simplify right side
    191,988.28x = 30,897,970,316.35
  5. Step 5: Solve for x
    x = 30,897,970,316.35/191,988.28
  6. Step 6: Final answer
    x = 160,936.75

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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.