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Finding the Fourth Proportional to 181,779.71, 271,910.01 and 127,740.48

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Solution

The fourth proportional to 181,779.71, 271,910.01 and 127,740.48 is: 191,076.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,779.71 : 271,910.01 = 127,740.48 : x
  2. Step 2: Convert to fraction form
    181,779.71/271,910.01 = 127,740.48/x
  3. Step 3: Cross multiply
    181,779.71x = 271,910.01 × 127,740.48
  4. Step 4: Simplify right side
    181,779.71x = 34,733,915,513.56
  5. Step 5: Solve for x
    x = 34,733,915,513.56/181,779.71
  6. Step 6: Final answer
    x = 191,076.96

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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.