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Finding the Fourth Proportional to 191,919.70, 264,763.54 and 111,300.49

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Solution

The fourth proportional to 191,919.70, 264,763.54 and 111,300.49 is: 153,545.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,919.70 : 264,763.54 = 111,300.49 : x
  2. Step 2: Convert to fraction form
    191,919.70/264,763.54 = 111,300.49/x
  3. Step 3: Cross multiply
    191,919.70x = 264,763.54 × 111,300.49
  4. Step 4: Simplify right side
    191,919.70x = 29,468,311,736.13
  5. Step 5: Solve for x
    x = 29,468,311,736.13/191,919.70
  6. Step 6: Final answer
    x = 153,545.01

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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.