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Finding the Fourth Proportional to 191,980.28, 264,980.22 and 116,591.96

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Solution

The fourth proportional to 191,980.28, 264,980.22 and 116,591.96 is: 160,925.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,980.28 : 264,980.22 = 116,591.96 : x
  2. Step 2: Convert to fraction form
    191,980.28/264,980.22 = 116,591.96/x
  3. Step 3: Cross multiply
    191,980.28x = 264,980.22 × 116,591.96
  4. Step 4: Simplify right side
    191,980.28x = 30,894,563,211.03
  5. Step 5: Solve for x
    x = 30,894,563,211.03/191,980.28
  6. Step 6: Final answer
    x = 160,925.71

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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.