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Finding the Fourth Proportional to 191,920.10, 264,764.16 and 111,300.92

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Solution

The fourth proportional to 191,920.10, 264,764.16 and 111,300.92 is: 153,545.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,920.10 : 264,764.16 = 111,300.92 : x
  2. Step 2: Convert to fraction form
    191,920.10/264,764.16 = 111,300.92/x
  3. Step 3: Cross multiply
    191,920.10x = 264,764.16 × 111,300.92
  4. Step 4: Simplify right side
    191,920.10x = 29,468,494,591.03
  5. Step 5: Solve for x
    x = 29,468,494,591.03/191,920.10
  6. Step 6: Final answer
    x = 153,545.64

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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.