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Finding the Fourth Proportional to 165,737.20, 248,692.20 and 72,252.40

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Solution

The fourth proportional to 165,737.20, 248,692.20 and 72,252.40 is: 108,416.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,737.20 : 248,692.20 = 72,252.40 : x
  2. Step 2: Convert to fraction form
    165,737.20/248,692.20 = 72,252.40/x
  3. Step 3: Cross multiply
    165,737.20x = 248,692.20 × 72,252.40
  4. Step 4: Simplify right side
    165,737.20x = 17,968,608,311.28
  5. Step 5: Solve for x
    x = 17,968,608,311.28/165,737.20
  6. Step 6: Final answer
    x = 108,416.27

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1.5x scale

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.