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Finding the Fourth Proportional to 191,554.67, 287,369.67 and 79,174.46

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Solution

The fourth proportional to 191,554.67, 287,369.67 and 79,174.46 is: 118,777.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,554.67 : 287,369.67 = 79,174.46 : x
  2. Step 2: Convert to fraction form
    191,554.67/287,369.67 = 79,174.46/x
  3. Step 3: Cross multiply
    191,554.67x = 287,369.67 × 79,174.46
  4. Step 4: Simplify right side
    191,554.67x = 22,752,339,457.96
  5. Step 5: Solve for x
    x = 22,752,339,457.96/191,554.67
  6. Step 6: Final answer
    x = 118,777.26

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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.