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Finding the Fourth Proportional to 104,692.20, 156,985.74 and 48,483.96

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Solution

The fourth proportional to 104,692.20, 156,985.74 and 48,483.96 is: 72,701.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,692.20 : 156,985.74 = 48,483.96 : x
  2. Step 2: Convert to fraction form
    104,692.20/156,985.74 = 48,483.96/x
  3. Step 3: Cross multiply
    104,692.20x = 156,985.74 × 48,483.96
  4. Step 4: Simplify right side
    104,692.20x = 7,611,290,338.73
  5. Step 5: Solve for x
    x = 7,611,290,338.73/104,692.20
  6. Step 6: Final answer
    x = 72,701.60

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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.