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Finding the Fourth Proportional to 191,628, 264,446.64 and 111,102.24

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Solution

The fourth proportional to 191,628, 264,446.64 and 111,102.24 is: 153,321.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,628 : 264,446.64 = 111,102.24 : x
  2. Step 2: Convert to fraction form
    191,628/264,446.64 = 111,102.24/x
  3. Step 3: Cross multiply
    191,628x = 264,446.64 × 111,102.24
  4. Step 4: Simplify right side
    191,628x = 29,380,614,064.47
  5. Step 5: Solve for x
    x = 29,380,614,064.47/191,628
  6. Step 6: Final answer
    x = 153,321.09

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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.