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Finding the Fourth Proportional to 190,692.80, 285,784.44 and 100,551.68

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Solution

The fourth proportional to 190,692.80, 285,784.44 and 100,551.68 is: 150,693.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,692.80 : 285,784.44 = 100,551.68 : x
  2. Step 2: Convert to fraction form
    190,692.80/285,784.44 = 100,551.68/x
  3. Step 3: Cross multiply
    190,692.80x = 285,784.44 × 100,551.68
  4. Step 4: Simplify right side
    190,692.80x = 28,736,105,559.86
  5. Step 5: Solve for x
    x = 28,736,105,559.86/190,692.80
  6. Step 6: Final answer
    x = 150,693.19

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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.