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Finding the Fourth Proportional to 96,692.72, 145,038.88 and 54,553.67

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Solution

The fourth proportional to 96,692.72, 145,038.88 and 54,553.67 is: 81,830.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,692.72 : 145,038.88 = 54,553.67 : x
  2. Step 2: Convert to fraction form
    96,692.72/145,038.88 = 54,553.67/x
  3. Step 3: Cross multiply
    96,692.72x = 145,038.88 × 54,553.67
  4. Step 4: Simplify right side
    96,692.72x = 7,912,403,236.09
  5. Step 5: Solve for x
    x = 7,912,403,236.09/96,692.72
  6. Step 6: Final answer
    x = 81,830.39

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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.