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Finding the Fourth Proportional to 247,171.10, 370,723.84 and 69,692.40

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Solution

The fourth proportional to 247,171.10, 370,723.84 and 69,692.40 is: 104,529.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,171.10 : 370,723.84 = 69,692.40 : x
  2. Step 2: Convert to fraction form
    247,171.10/370,723.84 = 69,692.40/x
  3. Step 3: Cross multiply
    247,171.10x = 370,723.84 × 69,692.40
  4. Step 4: Simplify right side
    247,171.10x = 25,836,633,972.59
  5. Step 5: Solve for x
    x = 25,836,633,972.59/247,171.10
  6. Step 6: Final answer
    x = 104,529.35

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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.