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Finding the Fourth Proportional to 174,692.57, 261,852 and 79,780.53

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Solution

The fourth proportional to 174,692.57, 261,852 and 79,780.53 is: 119,585.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,692.57 : 261,852 = 79,780.53 : x
  2. Step 2: Convert to fraction form
    174,692.57/261,852 = 79,780.53/x
  3. Step 3: Cross multiply
    174,692.57x = 261,852 × 79,780.53
  4. Step 4: Simplify right side
    174,692.57x = 20,890,691,341.56
  5. Step 5: Solve for x
    x = 20,890,691,341.56/174,692.57
  6. Step 6: Final answer
    x = 119,585.46

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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.