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Finding the Fourth Proportional to 191,699.46, 264,546.30 and 111,174.72

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Solution

The fourth proportional to 191,699.46, 264,546.30 and 111,174.72 is: 153,421.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,699.46 : 264,546.30 = 111,174.72 : x
  2. Step 2: Convert to fraction form
    191,699.46/264,546.30 = 111,174.72/x
  3. Step 3: Cross multiply
    191,699.46x = 264,546.30 × 111,174.72
  4. Step 4: Simplify right side
    191,699.46x = 29,410,860,829.54
  5. Step 5: Solve for x
    x = 29,410,860,829.54/191,699.46
  6. Step 6: Final answer
    x = 153,421.72

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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.