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Finding the Fourth Proportional to 191,273.00, 286,910.10 and 71,305.11

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Solution

The fourth proportional to 191,273.00, 286,910.10 and 71,305.11 is: 106,957.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,273.00 : 286,910.10 = 71,305.11 : x
  2. Step 2: Convert to fraction form
    191,273.00/286,910.10 = 71,305.11/x
  3. Step 3: Cross multiply
    191,273.00x = 286,910.10 × 71,305.11
  4. Step 4: Simplify right side
    191,273.00x = 20,458,156,240.61
  5. Step 5: Solve for x
    x = 20,458,156,240.61/191,273.00
  6. Step 6: Final answer
    x = 106,957.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.