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Finding the Fourth Proportional to 147,092.76, 220,692.60 and 72,205.02

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Solution

The fourth proportional to 147,092.76, 220,692.60 and 72,205.02 is: 108,333.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,092.76 : 220,692.60 = 72,205.02 : x
  2. Step 2: Convert to fraction form
    147,092.76/220,692.60 = 72,205.02/x
  3. Step 3: Cross multiply
    147,092.76x = 220,692.60 × 72,205.02
  4. Step 4: Simplify right side
    147,092.76x = 15,935,113,596.85
  5. Step 5: Solve for x
    x = 15,935,113,596.85/147,092.76
  6. Step 6: Final answer
    x = 108,333.77

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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.