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Finding the Fourth Proportional to 191,451.63, 264,228.02 and 109,811.73

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Solution

The fourth proportional to 191,451.63, 264,228.02 and 109,811.73 is: 151,554.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,451.63 : 264,228.02 = 109,811.73 : x
  2. Step 2: Convert to fraction form
    191,451.63/264,228.02 = 109,811.73/x
  3. Step 3: Cross multiply
    191,451.63x = 264,228.02 × 109,811.73
  4. Step 4: Simplify right side
    191,451.63x = 29,015,337,461.96
  5. Step 5: Solve for x
    x = 29,015,337,461.96/191,451.63
  6. Step 6: Final answer
    x = 151,554.40

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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.