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Finding the Fourth Proportional to 172,692.45, 238,315.32 and 97,241.49

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Solution

The fourth proportional to 172,692.45, 238,315.32 and 97,241.49 is: 134,193.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,692.45 : 238,315.32 = 97,241.49 : x
  2. Step 2: Convert to fraction form
    172,692.45/238,315.32 = 97,241.49/x
  3. Step 3: Cross multiply
    172,692.45x = 238,315.32 × 97,241.49
  4. Step 4: Simplify right side
    172,692.45x = 23,174,136,806.63
  5. Step 5: Solve for x
    x = 23,174,136,806.63/172,692.45
  6. Step 6: Final answer
    x = 134,193.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.