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Finding the Fourth Proportional to 561,107.67, 841,779.65 and 181,998.73

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Solution

The fourth proportional to 561,107.67, 841,779.65 and 181,998.73 is: 273,036.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,107.67 : 841,779.65 = 181,998.73 : x
  2. Step 2: Convert to fraction form
    561,107.67/841,779.65 = 181,998.73/x
  3. Step 3: Cross multiply
    561,107.67x = 841,779.65 × 181,998.73
  4. Step 4: Simplify right side
    561,107.67x = 153,202,827,239.85
  5. Step 5: Solve for x
    x = 153,202,827,239.85/561,107.67
  6. Step 6: Final answer
    x = 273,036.42

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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.