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Finding the Fourth Proportional to 152,692.72, 210,722.60 and 101,623.84

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Solution

The fourth proportional to 152,692.72, 210,722.60 and 101,623.84 is: 140,245.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,692.72 : 210,722.60 = 101,623.84 : x
  2. Step 2: Convert to fraction form
    152,692.72/210,722.60 = 101,623.84/x
  3. Step 3: Cross multiply
    152,692.72x = 210,722.60 × 101,623.84
  4. Step 4: Simplify right side
    152,692.72x = 21,414,439,786.78
  5. Step 5: Solve for x
    x = 21,414,439,786.78/152,692.72
  6. Step 6: Final answer
    x = 140,245.32

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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.